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").

Fact1: vinegar can cause harm to the eyes, Fact2: Vinegar is dilute acetic acid., Question: What can acetic acid do to the eyes? (A) treat cataracts (B) harm them (C) Relieve pain (D) Dehydration (E) kill them (F) hydrate them (G) protect them (H) cleanse them
B

Fact1: Fertilization occurs when sperm swim to an egg inside an archegonium., Fact2: Gametes in males are called sperm, and in women commonly referred to as eggs., Question: What occurs when a male gamete swims to an egg? (A) permineralization (B) competition (C) movement (D) rapid expansion (E) fertilization (F) birth (G) copulation (H) ovulation
E

Fact1: Energy is passed up a food chain or web from lower to higher trophic levels., Fact2: Food gives energy., Question: What is passed up a chain or web from lower to higher trophic level? (A) Veins and arteries. (B) heat or cold (C) scarce resources (D) food resources (E) matter vibrating (F) rays or beams (G) Organic compounds (H) fossil fuels
D