Imagine a question and stream-of-consciousness explanation for which this is the answer: (H)
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Question: What are molecules that the immune system recognizes as foreign to the physical entity?
Options:
- (A) bacteria
- (B) proteins
- (C) antibodies
- (D) Allergies
- (E) negative
- (F) immunities
- (G) parasites
- (H) antigens
Stream-of-consciousness: Antigens are molecules that the immune system recognizes as foreign to the body. Bodies are physical entities. Antigens are molecules that the immune system recognizes as foreign to the physical entity.
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