instruction:
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").
question:
Which event can lead to the human caused change of an environment? (A) seasonal storms (B) annual flooding (C) natural woodland fires (D) clear cutting
answer:
D


question:
A stone may experience the most weathering over (A) a week (B) a year (C) a century (D) a decade
answer:
C


question:
Which is least likely to have a constant volume? (A) ice (B) play doh (C) food (D) car exhaust
answer:

D