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").

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

You're most likely to encounter magma at (A) top of iceberg (B) a cloud (C) a space station (D) an island
D

A pigeon is hungry so it snags a slice of pizza off a table using its (A) wing (B) teeth (C) beak (D) leg

C