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: a breathing mask is used for keeping harmful particles from entering the respiratory system, Fact2: Pulmonologists treat lungs and respiratory systems., Question: what does a breathing mask keep harmful particles from entering? (A) skin (B) tissue (C) stomach (D) h2o (E) H20 (F) air (G) lungs (H) gas masks
G

Fact1: Infancy is the period of most rapid growth after birth., Fact2: During infancy, babies learn whether to trust the world., Question: Babies do what most during their rapid growth period? (A) birth (B) move (C) run (D) fight (E) puberty (F) play (G) learn (H) shaking
G

Fact1: heating an egg causes a chemical reaction in the egg, Fact2: Insects hatch from eggs., Question: heat causes (A) heating liquids (B) energy of moving objects (C) global warming (D) insects to hatch (E) sweating (F) electricity (G) Greenhouse gases (H) kinetic energy

D