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]: If a thing has a good impact on nature, it is most likely (A) putting plastics in special containers (B) burning old used tires (C) putting cigarettes out in ponds (D) using aerosol air fresheners
[EX A]: A

[EX Q]: Using mirrors to focus collected light from heavenly bodies allows (A) detailed observation (B) foregone conclusions (C) radiation experiments (D) celestial music
[EX A]: A

[EX Q]: A predator such as a wolf will show such a distinction by (A) preferring rabbit to lettuce (B) turning down vegetables as food (C) chasing small moving mammals (D) eating meat when given it
[EX A]:
C