instruction:
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").
question:
Fact1: soil is formed by rocks eroding, Fact2: Rivers erode the rocks they flow over., Question: What is formed by rivers? (A) fish (B) soil (C) rain (D) bamboo (E) spring (F) clouds (G) kayaks (H) NaCl
answer:
B


question:
Fact1: the Himalayas were formed by rock folding, Fact2: Movements in the earth's crust have folded and cracked the older rocks., Question: the Himalayas were formed from older what (A) soils (B) plates (C) rivers (D) rock (E) eras (F) meadows (G) dirt (H) plains
answer:
D


question:
Fact1: Some parasites kill their host, but most do not., Fact2: Nutrients of the host are most likely absorbed through the body surface of the parasite., Question: Where do parasites get their nutrients? (A) an area swollen with pus (B) water (C) an organism's body (D) they body they live in (E) minerals (F) eat plants or other animal (G) aqueous solution (H) dead hosts
answer:

D