To match the items in List I with those in List II, we need to understand the functions and roles of each item.

Here are the explanations for each item:

(A) B-Lymphocytes: These are a type of white blood cell that plays a significant role in humoral immunity (part of the adaptive immune system). They produce antibodies to neutralize pathogens. This matches with III - Produce an army of proteins in response to pathogens.

(B) Interferons: These are proteins produced by various cells in response to viral infections. They are part of innate immunity and help in reducing the spread of viruses. This matches with IV - Innate immunity.

(C) T-Lymphocytes: These are another type of white blood cell, crucial for cell-mediated immunity. They do not produce antibodies but directly attack infected cells. This matches with II - Cell mediated immunity.

(D) Colostrum: This is the first form of milk produced after childbirth, rich in antibodies, providing passive immunity to the newborn. This matches with I - Passive immunity.

Now, matching these explanations with the options given:

Option C: A-III, B-IV, C-II, D-I

Therefore, the correct answer is Option C.