Question

multiple choice question
which t cells carry out attacks on foreign cells?

helper
memory
regulatory
cytotoxic

Explanation:

To determine which T cells attack foreign cells, we analyze each option:

• Helper T cells assist other immune cells but don't directly attack foreign cells.
• Memory T cells remember pathogens for future responses, not direct attack.
• Regulatory T cells regulate immune responses to prevent overreaction.
• Cytotoxic T cells (also called killer T cells) directly kill infected or foreign cells by releasing substances that destroy them.

Answer:

D. Cytotoxic