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").

Why is it dangerous for an animal to be kept boxed up in an area without air circulation? (A) it will be confused (B) it might get too viscious (C) it will be scared (D) it might get overheated
D

With more people eating cereal there comes a need for more (A) butter (B) top soil (C) water (D) corn
D

Riding a two wheeled human powered vehicle is good for the environment because (A) it runs without fuel (B) it helps people stay in shape (C) they are cheaper to maintain (D) they are more fun to drive

A