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 glacier moved through an area years and years ago, and scientists can tell this by (A) looking at the moon (B) looking at the dogs (C) looking at the sky conditions (D) glancing at nearby stone
D

Which two objects would electricity best flow through? (A) a tin can and a plastic fork (B) a steel beam and a soda can (C) an eraser and a wooden pencil (D) human skin and rubber gloves
B

Dead organisms, like trees provide (A) thriving communities (B) families (C) love (D) heat

A