Answer:
The correct answer is - IgE.
Explanation:
The penicillin allergy immune response is most of the time is due to the IgE mediated and only a few times its igG mediated. IgE mediated penicillin immune response occurs within one hour while others are show delayed reactions.
IgE mediated response shows specific symptoms such as shortness of breath, red or pink color itchy patches with angioedema, and anaphylaxis.
