Which of the following statements regarding the cell-mediated immune response is TRUE?
A. Cytotoxic T lymphocytes do not require antigen presentation to become activated.
B. Cytotoxic T lymphocytes interact with antibodies that have bound antigen to identify their target.
C. Helper T lymphocytes have no role in the activation of cytotoxic T lymphocytes.
D. Cytotoxic T lymphocytes kill by producing hydrogen peroxide.
E. A single cytotoxic T lymphocyte can kill many target cells.
Answer: E
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