In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

[EX Q]: In May I have a black cat what might I be unable to wear? (A) dark purple (B) yellow (C) dark grey (D) black
[EX A]: B

[EX Q]: Why animal may use a rock as shelter (A) Centipede (B) Dolphin (C) Seagull (D) Dog
[EX A]: A

[EX Q]: Which of the following would be least likely to reproduce? (A) 2 protozoa (B) 2 oak trees (C) 2 female cats (D) 2 bacteria
[EX A]:
C