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 Q]: Fact1: Prokaryotes are single-celled organisms that lack a nucleus., Fact2: Prokaryotes are usually microscopic and bacteria is an example of a prokaryote., Question: What are single celled organisms that do not have a nucleus? (A) Most plants (B) nucleus (C) ferns (D) fossil fuels (E) bushes (F) Eukaryotes (G) leech (H) bacteria
[EX A]: H

[EX Q]: Fact1: predicting weather requires studying weater, Fact2: Meteorologists try to predict the weather., Question: What do meteorologists study? (A) Meatballs (B) amount of heat (C) Meteors (D) The weather. (E) related organisms (F) Music (G) air masses (H) Seisometers
[EX A]: D

[EX Q]: Fact1: erosion causes deposition, Fact2: Wind erosion is dominant., Question: what causes deposition? (A) motion (B) wind (C) rain (D) rivers (E) Sand (F) stream (G) soils (H) spring
[EX A]:
B