1.

Question : Match the type of immunity listed in Column I with the examples listed in Column II the correct combination of alphabets of the two Column.

Answer»

<P>A = s, B = t, C = q, D = r
A = t, B = s, C = r, D = p
A = p, B = q, C = r, D = t
A = s, B = r, C = t, D = q

Answer :d


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