Question

which portion of the lobes of the thymus gland contains lymphoid stem cells that divide rapidly, producing daughter cells that mature into t cells and migrate into the medulla?

Explanation:

The cortex of the thymus gland is where lymphoid stem cells divide rapidly. These daughter cells mature into T - cells and then migrate into the medulla. The septa are connective tissue partitions that separate the lobes of the thymus and do not have the function described in the question.

Answer:

C. Cortex