A) Natural killer cells
B) Monocytes
C) Macrophages
D) Immunoglobulin A
Correct Answer: D
Solution :
Colostrum, the yellowish fluid secreted by the mother during initial days of lactation is very essential to impart immunity to the -new born infant because it contains Immunoglobulin A. It will impart naturally acquired passive immunity to the newborn.You need to login to perform this action.
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