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: Bivalves feed on plankton and nonliving organic matter., Fact2: Mussels are bivalve mollusks., Question: What feeds on plankton and nonliving organic matter? (A) barnacles (B) mollusks (C) animals (D) the Sun (E) sharks (F) graptolites (G) bacteria (H) dogs

Ex Output:
B


Ex Input:
Fact1: Grasses supply most of the food consumed by people worldwide., Fact2: Sugarcane, a grass, provides much of the world's sugar., Question: What is an example of a plant that supplies most of the food consumed by people worldwide? (A) Sugarcane (B) orchids (C) bushes (D) bioaerosols (E) cacti (F) trees (G) ferns (H) Chlorophyll

Ex Output:
A


Ex Input:
Fact1: Grasses supply most of the food consumed by people worldwide., Fact2: Grasses and other herbaceous plants are preferred food., Question: What do herbaceous plants supply the world with? (A) oxygen (B) growth (C) Energy (D) Crops (E) seeds (F) food (G) life (H) Carbon

Ex Output:

F