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").

Example Input: when the needle of a compass lines up with Earth 's magnetic poles , the needle is (A) pointing east (B) pointing west (C) pointing at arctic (D) pointing to space
Example Output: C

Example Input: Polar bears are best suited for (A) colder places (B) hotter regions (C) Jupiter's polar caps (D) northern desert regions
Example Output: A

Example Input: Many animals that give birth to live young have (A) skin (B) scales (C) exoskeletons (D) gills
Example Output:
A