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").

Webbed feet aid in what (A) penguins laying eggs on ice (B) fish hiding in coral reefs (C) gulls dive bombing fish from the sea (D) ducks chasing prey underwater
D

You can find ferrous metals in (A) Grass (B) Vehicle scraps (C) Wood (D) Glass
B

As the pull of gravity decreases air molecules (A) explode (B) disperse (C) crowd together (D) party

B