Difficulty: Medium
Average Score: 78%
Simulated
Which of the following white blood cells is the smallest and can be involved in humoral immunity?
Correct answer
A
Rationale
The correct answer is 'Lymphocyte.' Lymphocytes are the smallest type of white blood cells and play a crucial role in humoral immunity by producing antibodies. Monocytes are actually the largest white blood cells and are involved in phagocytosis rather than humoral immunity. Basophils are a type of granulocyte involved in allergic reactions, and erythrocytes are red blood cells responsible for oxygen transport, not part of the immune system.