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: Zooplankton are tiny animals that feed on phytoplankton., Fact2: Many zooplankton are crustaceans., Question: What can feed on phytoplankton? (A) producers (B) phytoplankton (C) passenger pigeons (D) bacteria (E) tiny crustaceans (F) the Sun (G) honeybees (H) parasites
[EX A]: E

[EX Q]: Fact1: pushing on the pedals of a bike cause that bike to move, Fact2: Schwinn bikes have carried many TWW'ers to the podium time and time again., Question: what moves by having the pedals pushed on? (A) organ (B) h2o (C) Schwinn (D) Nematoda (E) animals (F) athletes (G) clouds (H) kites
[EX A]: C

[EX Q]: Fact1: burning fossil fuels increases the carbon in the atmosphere, Fact2: More carbon in the atmosphere means atmospheric warming., Question: what increases when fossil fuels are burned? (A) Greenhouse gasses (B) Greenhouse gases (C) cancer (D) wood ash (E) atmospheric warming (F) coal (G) heat energy (H) Temperature
[EX A]:
E