<p>If the Innovation Fair is canceled, <u>those</u> who prepaid the registration fee will receive a full refund.</p><p>The correct answer is (D) those</p>
<div data-answer="d"><span style="font-size: 13.008px;">The pronoun "those" is the correct choice in this sentence. It is used to refer to a specific group of people, in this case, the individuals who prepaid the registration fee.</span></div><div data-answer="d"><span style="font-size: 13.008px;"> </span></div><div data-answer="d"><span style="font-size: 13.008px;">"One" (A) is incorrect because it refers to a singular individual, not a group. </span></div><div data-answer="d"><span style="font-size: 13.008px;">"Them" (B) is incorrect because it is an object pronoun and does not agree with the subject of the sentence.</span></div><div data-answer="d"><span style="font-size: 13.008px;">"They" (C) is incorrect because it is a subject pronoun and does not agree with the object of the sentence. </span></div><div data-answer="d"><span style="font-size: 13.008px;"><br></span></div><div data-answer="d"><span style="font-size: 13.008px;">Therefore, the correct pronoun to use in this sentence is "those" (D).</span><br></div>