For centuries, people have believed that the earth is flat. The first people who challenged this idea were those who dared to travel long distances, as sailors who circumnavigated the globe, or explorers who traveled to distant lands. However, the evidence was still inconclusive, and many people continued to hold onto the old world view. It wasn’t until the advent of space travel that the earth’s spherical shape became undeniable. The text emphasizes that ______
","stem_html":"What is the most likely reason why the author uses the word "undeniably"?
","rationale_html":"The word "undeniably" emphasizes the impact of scientific discovery. The author is suggesting that the earth's spherical shape became undeniable only after the advent of space travel. This suggests that the evidence from space travel was so convincing that it changed people’s minds.
","correct_answer":["B"],"has_media":false,"has_mathml":false,"has_table":false,"source_created_at":null,"source_updated_at":null,"options":[{"label":"A","content_html":"to describe the beauty and wonder of the earth.
","ord":0},{"label":"B","content_html":"to highlight the impact of scientific discovery.
","ord":1},{"label":"C","content_html":"to indicate that the earth is a sphere.
","ord":2},{"label":"D","content_html":"to argue that the earth is flat.
","ord":3}],"attribution":{"source_id":"opensat","source_name":"OpenSAT community question bank","rights_holder":"OpenSAT contributors","canonical_url":"https://github.com/Anas099X/OpenSAT","retrieved_from":"https://pinesat.duckdns.org/api/questions","attribution":"Reading and Writing practice questions from the OpenSAT community question bank, whose licence permits free use of the database.","disclaimer":"OpenSAT items are community-written or AI-generated practice material, not official College Board questions; quality varies.","license":"OpenSAT LICENSE.md: the database may be used freely, including commercially, without restriction. Code is separately restricted.","redistributable":true,"item_count":1406}}