What is true about T-lymphocytes in mammals?

Options

A. They scavenge damaged cells and cellular debris
B. These are produced in thyroid
C. There are three main types-cytotoxic T-cells, helper T-cells and suppressor T-cells
D. These originate in lymphoid tissues

Answer

C

Explanation

The function of T-cells is to provide immunity (cellular type) and not to scavenge damaged cells and cells debirs. These are produced in bone marrow and get matured in thymus gland. Hence, the only true statement is that there are three types of T-cells, i.e. cytotoxic, helper and suppressor.