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").

A man is teaching his daughter to ride a bike. He emphasizes the need for her feet to remain on the pedals, so that (A) the bike is fun (B) the bike propels forward (C) the bike hold still (D) the bike is pink
B