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").

Q: Fact1: Blood pressure is highest in arteries and lowest in veins., Fact2: Blood Pressure Blood Pressure Blood pressure is the force of the blood on the artery walls., Question:  is highest in arteries and lowest in veins. (A) matter (B) voltage (C) Length (D) solutes (E) glucose (F) measure (G) Force (H) Joules

A: G
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Q: Fact1: acid rain has a negative impact on water quality, Fact2: Sulfur dioxide causes acid rain., Question: What has a negative impact on water quality? (A) Reverse osmosis (B) fossil fuels (C) Fresh water (D) Carbon filter (E) chlorofluorocarbons (F) Sulfur dioxide (G) Pollution (H) harmful substances

A: F
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Q: Fact1: Lymphocytes are the key cells involved in the immune response., Fact2: An allergy attack is an immunal response., Question: What are the key cells in an allergy attack? (A) layers of fat (B) Lymphocytes. (C) fur and fat (D) bone cells (E) muscle cells (F) the skin (G) Red blood cells (H) animals

A:
B
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