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: Cancer is a disease in which cells divide out of control., Fact2: Chemotherapy works on cells that are dividing., Question: What helps stop cells multiplying in cancer? (A) the skin (B) Honey (C) sweating (D) Chemotherapy (E) H2O (F) Chemical energy (G) Titanium (H) bioaerosols
D

Fact1: Active immunity results when an immune response to a pathogen produces memory cells., Fact2: Pathogens are germs that cause disease., Question: Active immunity is when an immune response occurs after a germ produces what? (A) harmful substances (B) bioaerosols (C) rapid expansion (D) Allergies (E) anemia (F) it needs them (G) Chemical energy (H) memory cells
H

Fact1: Oxygen is essential for cellular respiration for all aerobic organisms., Fact2: Fungi are aerobic organisms., Question: Oxygen is essential for cellular respiration for what? (A) Man (B) Energy. (C) humans (D) plants (E) animals (F) Energy (G) health (H) fungi

H