{"id":"cb_question_bank:7f8e2946-350f-4207-b45b-afaa94d72d4e","source_id":"cb_question_bank","source_item_id":"7f8e2946-350f-4207-b45b-afaa94d72d4e","external_id":"27832d9c-52c0-451d-9ea9-b7f14498c1fd","ibn":null,"question_id":"b6560e5a","program":"SAT","module":"english","domain_code":"SEC","domain":"Standard English Conventions","skill_code":"BOU","skill":"Boundaries","difficulty":"M","score_band":4,"answer_type":"mcq","answer_source":"key","layout_warning":null,"form_id":null,"module_number":null,"position":null,"stem":"Which choice completes the text so that it conforms to the conventions of Standard English?","stimulus":"Materials scientist Marie-Agathe Charpagne and her colleagues believed they could improve on the multicomponent alloy NiCoCr, an equal-proportions mixture of nickel (Ni), cobalt (Co), and chromium (Cr), by replacing chromium with ruthenium ______ blank the alloy that resulted, NiCoRu, turned out to be an unsuitable replacement for NiCoCr.","stimulus_html":"<p>Materials scientist Marie-Agathe Charpagne and her colleagues believed they could improve on the multicomponent alloy NiCoCr, an equal-proportions mixture of nickel (Ni), cobalt (Co), and chromium (Cr), by replacing chromium with ruthenium <span>______</span><span class=\"sr-only\">blank</span> the alloy that resulted, NiCoRu, turned out to be an unsuitable replacement for NiCoCr.</p>","stem_html":"<p>Which choice completes the text so that it conforms to the conventions of Standard English?</p>","rationale_html":"<p>Choice D is the best answer. The convention being tested is the coordination of main clauses. This choice correctly uses a comma and the coordinating conjunction “but” to join the first main clause (“Materials…Ru”) and the second main clause (“the alloy…NiCoCr”). </p><p>Choice A is incorrect because it results in a run-on sentence. The two main clauses are fused without punctuation and/or a conjunction.&nbsp;Choice B is incorrect because when coordinating two longer main clauses such as these, it’s conventional to use a comma before the coordinating conjunction.&nbsp;Choice C is incorrect because it results in a comma splice. Without a conjunction following it, a comma can’t be used in this way to join two main clauses.&nbsp;</p>","correct_answer":["D"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":"2023-08-02T20:25:59.346000+00:00","source_updated_at":"2023-08-02T20:25:59.346000+00:00","options":[{"label":"A","content_html":"<p>(Ru)</p>","ord":0},{"label":"B","content_html":"<p>(Ru) but</p>","ord":1},{"label":"C","content_html":"<p>(Ru),</p>","ord":2},{"label":"D","content_html":"<p>(Ru), but</p>","ord":3}],"attribution":{"source_id":"cb_question_bank","source_name":"College Board digital SAT question bank (community dump)","rights_holder":"College Board","canonical_url":"https://satsuitequestionbank.collegeboard.org/","retrieved_from":"https://raw.githubusercontent.com/mdn522/sat-question-bank/main/data/cb-digital-questions.json","attribution":"SAT practice questions © College Board, from the official SAT Suite Question Bank. Retrieved via the community dump at github.com/mdn522/sat-question-bank.","disclaimer":"SAT® and PSAT/NMSQT® are trademarks registered by the College Board, which is not affiliated with, does not sponsor, and does not endorse this project.","license":"College Board copyright; source repository carries no licence. Local use only.","redistributable":false,"item_count":2017}}