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: Echinoderms use pheromones to communicate with each other., Fact2: All echinoderms are deuterostomes ., Question: What use pheromones to communicate with each other? (A) passenger pigeons (B) honeybees (C) deuterostomes (D) Most plants (E) insects (F) animals (G) huddle together (H) orchids
C

Fact1: Most mollusks have shells., Fact2: All mollusks have soft bodies., Question: What can shells protect? (A) fronts (B) animals (C) soft bodies (D) coastlines (E) fur (F) blood (G) critical organs (H) hard bodies
C

Fact1: heating a liquid can be used to identify that liquid 's boiling point, Fact2: Pressure affects the boiling point of a liquid., Question: What affect does high pressure have on the boiling point (A) heat (B) Rise (C) Increase (D) forces (E) Heart rate (F) energy usage (G) Temperature (H) Dehydration

C