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").

[Q]: Fact1: vein deposits of gold and silver are formed by igneous intrusion, Fact2: Intrusive igneous rocks account for sections of higher elevation., Question: vein deposits of gold and silver are formed where? (A) loose soil (B) aqueous solution (C) graptolites (D) tectonic plates coliding (E) higher elevations (F) mountain sources (G) flow of electrons (H) In sediment
[A]: E


[Q]: Fact1: webbed feet are used for moving faster through water by aquatic animals, Fact2: Animals move around, seeking their prey., Question: What do webbed feet help aquatic animals do? (A) rapid expansion (B) root growth (C) Catch prey (D) support (E) Regrows it (F) squeeze (G) Relieve pain (H) improve
[A]: C


[Q]: Fact1: when a plant grows , the size of the leaves of that plant may increase, Fact2: Perennial types are planted outside in spring., Question: what may have its leaf size increase as it grows? (A) tiny polyps (B) gene flow (C) h2o (D) grass (E) subtropical (F) humans (G) Tropical (H) perennials
[A]:
H