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: Sperm had to swim from male to female reproductive organs for fertilization., Fact2: Gametes, the sperm and eggs, are produced by mitosis in the haploid gametophyte., Question: What swims from male to female reproductive organs for fertilization? (A) gametes (B) barnacles (C) fur seals (D) eggs (E) offspring (F) haploid (G) seeds (H) diploid
answer:
A


question:
Fact1: Male dogs use pheromones in urine to mark their territory., Fact2: Pheromones are natural aphrodisiacs., Question: What do male dogs use in urine to mark their territory? (A) Natural aphrodisiacs (B) competing for resources (C) Tails (D) Urine  cleaner (E) Something coming from a gland (F) Chemical energy (G) an area swollen with pus (H) Chew toys
answer:
A


question:
Fact1: Any surface that has not been sterilized is likely to be covered with bacteria., Fact2: Raw meat is loaded with harmful bacteria., Question: What should you sterilize after placing an uncooked hamburger on it? (A) plasma and formed elements (B) Surfaces and counters (C) safe operation (D) Sesame Buns (E) antigens that cause allergy (F) Hot frying pans (G) Raw Meat (H) one-celled animals
answer:

B