Official Solution:During her thesis defense, the audience had a mixed reaction to the conclusions of the graduate student, who paid careful attention to it.A. the audience had a mixed reaction to the conclusions of the graduate student, who paid careful attention to it.
B. the audience had a mixed reaction to the graduate student’s thesis, and she paid careful attention to it.
C. the graduate student paid careful attention to her audience, who had a mixed reaction to her conclusions.
D. the graduate student paid careful attention to her audience experiencing a mixed reaction to her conclusions.
E. the graduate student paid careful attention to her audience’s reactions to her conclusions, which were mixed.
(A) The sentence has an incorrect modifier. During her thesis defense should refer to the graduate student instead of the audience
(B) This sentence has the same modifier error as choice A. Also, the audience’s mixed reaction should be to the student’s conclusions, not to her thesis
(C) CORRECT. The opening clause correctly modifies the graduate student; the pronoun who correctly refers to audience
(D) This sentence incorrectly implies that the student paid careful attention to the audience experiencing a mixed reaction, rather than to the mixed reaction itself
(E) This sentence incorrectly implies that the student’s conclusions were mixed, instead of the audience’s reactions
Answer: C