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 Input:
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 Output:
A


Ex Input:
A system of tubes that relocates water and nutrients around in order to make most use of them can be found in (A) a lily (B) a door (C) a table (D) a rock

Ex Output:
A


Ex Input:
To function, electrical energy is required for what kind of devices? (A) wet (B) zapping powered (C) hydro (D) watery

Ex Output:

B