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: All life relies on a relatively narrow range of pH, or acidity., Fact2: Human life is dependent life., Question: what relies on a relatively narrow range of acidity? (A) gravity (B) mammals (C) animals (D) trees (E) humans (F) density (G) volume (H) potatoes
E

Fact1: a plant requires photosynthesis to grow, Fact2: Legumes are typical of that type of plant., Question: what requires photosynthesis to grow? (A) Roundworms (B) clouds (C) Conifers (D) Echinoids (E) humans (F) h2o (G) legumes (H) sugar
G

Fact1: Consumers take in food by eating producers or other living things., Fact2: Humans are consumers in food webs., Question: what takes in food by eating producers or other living things? (A) fungi (B) producers (C) humans (D) lettuce (E) people (F) bears (G) animals (H) grass

C