Your friend ate some shellfish, and as a result, his face and hands become swollen and red. You recommend he take an antihistamine. This may be effective in alleviating his symptoms because ________.
A. the medication will relax the bronchial smooth muscles, allowing him to breathe more freely
B. the medication should increase the vascular permeability of the irritated tissue, allowing immune cells to enter the tissue
C. the medication will help to prevent the escape of fluid and plasma proteins into the extracellular space
D. the medication should cause vasodilation to the tissues, allowing cells of the immune system to remove the foreign antigens
Answer: C
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