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").
--------
Question: Fact1: Tunicates reproduce sexually., Fact2: Sea squirts are the best known tunicates., Question: what reproduces sexually? (A) orchids (B) mountains (C) viruses (D) humans (E) sea squirts (F) Most plants (G) h2o (H) insects

Answer: E


Question: 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

Answer: G


Question: Fact1: Chordates have a complete digestive system and a closed circulatory system., Fact2: All of the chordates have elongated bilaterally symmetrical bodies., Question: humans have complete digestive systems and what bodies. (A) non symmetrical (B) allow growth (C) aerobic capacity (D) bilateraly symmetrical (E) steal (F) sensory neurons (G) biological diversity (H) rubber

Answer:
D