The Following Are Steps in the Cell- Mediated Immune Response

Multiple Choice

The following are steps in the cell- mediated immune response. 1. Several cycles of mitosis occur.
2) Antigen is engulfed and presented by a macrophage.
3) Cytotoxic T cells migrate to focus of infection.
4) T cells with specific receptors recognize the antigen.
5) T cells differentiate into cytotoxic T cells or T memory cells.
6) Cytotoxic T cells release perforin and/or lymphotoxin.
The correct sequence for these steps is

A) 1, 2, 4, 5, 3, 6.
B) 3, 2, 4, 1, 5, 6.
C) 2, 4, 1, 5, 3, 6.
D) 4, 1, 5, 3, 6, 2.
E) 3, 6, 4, 5, 1, 2.