What is the difference between B-cell lymphocytes and T-cell lymphocytes?

Question

B cells regulate blood pH, and T cells regulate body temperature.
B cells are produced in the thymus, and T cells are produced in the bone marrow.
B cells engulf bacteria, and T cells carry bacteria to the lymph nodes.
B cells produce antibodies, and T cells destroy infected cells.

Answer 1

The correct difference is that B cells produce antibodies, while T cells destroy infected cells.