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Rina8888 [55]
2 years ago
7

Help!!!!!!!!!!!!!!!!

Mathematics
2 answers:
Elenna [48]2 years ago
6 0
Answer: B) B,only

Explanation:
Sati [7]2 years ago
4 0

Answer:

Antigens that trigger hypersensitivity reactions in some people are called allergens.so i think answer B(only)

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