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").

Input: Consider Input: What displays the movement of electrons from the base atoms? (A) venus (B) mercury (C) plasma star (D) pluto

Output: C

Input: Consider Input: insulation for the purposes of moving electrons involves (A) conductor wrapped wire (B) insulator wrapped insulator (C) non coated metal (D) insulation encompassed wire

Output: D

Input: Consider Input: As a plant's roots get bigger, they split apart (A) worms (B) water (C) granite (D) atoms
Output: C