Question

which allergic response may result from repeated exposure to a substance? a immediate reaction b delayed reaction c immune complex d antibody dependent cytotoxic

Explanation:

Repeated exposure to a substance can lead to a delayed allergic reaction. Immediate reactions occur rapidly upon exposure. Immune complexes are aggregates of antibodies and antigens, and antibody - dependent cytotoxic reactions involve antibodies targeting cells. But the allergic response from repeated exposure is often a delayed one.

Answer:

B. Delayed reaction