Multiple Choice
Retinoic acid is
A) a metabolite of vitamin
B) used to kill pathogens in the gut.
C) released to produce a tolerogenic response.
D) both a metabolite of vitamin A and used to kill pathogens in the gut.
E) both a metabolite of vitamin A and released to produce a tolerogenic response.
Correct Answer:

Verified
Correct Answer:
Verified
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