Correct Answer - B
The yellowish fluidcolostrum is secreted by mother during the initial days of lactation has abundant antibodies (lgA) to protect the infant from several diseases.
lgG immunoglobulin (antibody) is most abundant (appro .80%) antibody in human and found in serum lgA is second abundant (approx .10-15%) antibody. It is found in saliva and tear also. lgD and lgE constitute 2-3% of total antibodies which are found in most cells and serum.
