Question

Humoral immunity is due to:

• A. $B-$ lymphocytes
• B. $T-$ lymphocytes
• C. $L-$ lymphocytes
• D. $P-$ lymphocytes

Answer 1

The correct option is A $B-$ lymphocytes

One of the main components of the adaptive immune system is the $T$ cells (also called $T$ lymphocytes).
Humoral immunity is also called the antibody-mediated immunity. The main function of B-cells is to make antibodies against soluble antigens.
So, the correct answer is, '(a) $B-$ lymphocytes or plasma cells'.