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: if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past, Fact2: Marine fossils found in the interior of the continent., Question: Why are marine fossils in the interior of a continent? (A) erosion from rivers (B) It used to be covered by water (C) They evolved to be land animal (D) basic building blocks of life (E) They washed ashore (F) the wearing away of rock (G) Land animals ate them (H) units of heredity
answer:
B


question:
Fact1: Ejaculation occurs when muscle contractions propel sperm from the epididymes., Fact2: Male gametes are called sperm., Question: What is it called when male gametes are propelled because of muscle contractions? (A) competition (B) rapid expansion (C) intercourse (D) thrusting (E) a wave (F) reproductions (G) A Greek letter (H) ejaculation
answer:
H


question:
Fact1: Echinoderms lack respiratory and excretory systems., Fact2: Echinoderms in the diorama include the crinoids and blastoids., Question: What lack respiratory and excretory systems? (A) They may not survive. (B) members of their own species (C) platypus (D) humans (E) crinoids and blastoids (F) passenger pigeons (G) graptolites (H) whales
answer:

E