Question

multiple choice question
most lymphocytes circulating in blood are ______.

b cells
t cells
nk cells

Explanation:

In the blood, among lymphocytes (B cells, T cells, NK cells), T cells constitute the majority of circulating lymphocytes. B cells are more involved in humoral immunity and have different distribution patterns, while NK cells are a smaller population. So the correct option is T cells.

Answer:

B. T cells