Browse Questions

# A noninfectious unnatural and unusual reaction to a substance or condition is

$\begin{array}{1 1}(A)\;\text{Immunity}\\(B)\;\text{Allergy}\\(C)\;\text{Infection}\\(D)\;\text{Toxin}\end{array}$

A noninfectious unnatural and unusual reaction to a substance or condition is allergy
Hence (B) is the correct answer.