Question

multiple choice question
the organ that is the site of t-cell maturation is the ______.

thymus
blood
thyroid
red bone marrow

Explanation:

T - cells mature in the thymus. Blood is a transport medium, the thyroid produces hormones, and red bone marrow is the site of T - cell production (not maturation). So the correct option is the one with "thymus".

Answer:

A. thymus