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The correct answer is B because it uses a semicolon to correctly separate two independent clauses. The independent clauses in the sentence are "The artist's use of color is striking and memorable" and "the hues are bold and vibrant." Choice A is incorrect because it uses a comma to separate two independent clauses, which creates a comma splice. Choice C is incorrect because it uses a colon to separate two independent clauses, which is incorrect because the second clause doesn’t explain or amplify the first clause. Choice D is incorrect because it uses a semicolon to separate two independent clauses, which is correct, but it also uses a comma after the second clause, which is incorrect because the second clause doesn’t explain or amplify the first clause.