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: Female monotremes lack a uterus and vagina., Fact2: Monotremes are mammals that lay eggs., Question: What do some female mammals lack? (A) epidermal (B) vision (C) uterus (D) alleles (E) fur (F) a cuticle (G) eardrum (H) alveoli
[EX A]: C

[EX Q]: Fact1: smoking tobacco decreases stamina, Fact2: An added benefit is increased stamina and aerobic capacity., Question: Smoking tobacco decreases (A) aerobic capacity (B) growth hormone (C) Abnormal cell growth (D) Greenhouse gasses (E) survival (F) kinetic energy (G) insulin production (H) testosterone
[EX A]:
A