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: sandpaper is used to smooth wooden objects, Fact2: All objects, even wooden tables, are made up of molecules which vibrate to create their mass., Question: What can be used to smooth a table? (A) Wax paper (B) Sponge (C) lamphreys (D) Tissue (E) Sandpaper (F) scratching it (G) keratin (H) tiny hairs
[A]: E


[Q]: Fact1: Many corals secrete an exoskeleton that builds up to become a coral reef., Fact2: Good examples are Bubble coral, Elegance coral, Frogspawn and other Euphyllia corals., Question: What is secreted by organisms like frogspawn to become a reef? (A) exocrine glands (B) food and shelter (C) exoskeleton (D) bones (E) Energy (F) Chemical energy (G) plasma (H) Energy.
[A]: C


[Q]: Fact1: when a body of water receives more water than it can hold , a flood occurs, Fact2: When flooding occurs, water seeks the lowest level., Question: Where does water go when it floods? (A) To another location like underground (B) underground systems (C) Inches or fractions of inches. (D) enormous damage to homes (E) it flows to a lower level (F) sedimentary rocks (G) plankton and nonliving organic (H) near the shoreline
[A]:
E