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: Annelids are worms such as the familiar earthworm., Fact2: An earthworm has five hearts., Question: One example of an annelid has how many hearts? (A) three (B) Five (C) white (D) warm (E) four (F) strong (G) long (H) small

Ex Output:
B


Ex Input:
Fact1: planting trees has a positive impact on an ecosystem, Fact2: An ecosystem contains many habitats., Question: doing what with trees has a positive impact on habitats (A) making tables (B) chopping down (C) planting (D) watershed (E) earth (F) bloom time (G) growth (H) timbering

Ex Output:
C


Ex Input:
Fact1: burning wood is used to produce heat, Fact2: Heat is kinetic energy., Question: Burning wood is used to produce what type of energy? (A) Light (B) warmth (C) potential (D) Fuel cells (E) food (F) electrical (G) mechanical (H) kinetic

Ex Output:

H