In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Ex Input:
Fact1: gravity causes objects that have mass to be pulled down on a planet, Fact2: Rocks have mass., Question: What does gravity cause to be pulled down on a planet? (A) matter (B) heat (C) earth (D) solutes (E) oceans (F) Rocks (G) people (H) Lift

Ex Output:
F

Ex Input:
Fact1: crumple means change shape from smooth into compacted by physical force, Fact2: Crumple the foil then carefully reopen it., Question: What is used to scrunch up foil? (A) tin (B) awl (C) parchment paper (D) an external framework (E) Physical force (F) energy barrier (G) hard outer covering (H) Evaporation

Ex Output:
E

Ex Input:
Fact1: plant reproduction requires pollination, Fact2: Cranberry flowers require bee visitation for pollination., Question: What is required for reproduction in cranberry plants? (A) nucleus of a cell (B) parental permission (C) organic molecules (D) Energy. (E) bee visitation (F) hydrogen and oxygen (G) ocean spray (H) full moon

Ex Output:
E