Final Answer:
Fas and TNF receptor-mediated apoptosis is also mediated by the activation of caspase. Option A is answer.
Step-by-step explanation:
Apoptosis, or programmed cell death, can be initiated through various pathways, and caspases play a central role in this process. Option A is correct: Fas and TNF receptors are involved in receptor-mediated apoptosis.
Fas (CD95) and TNF (tumor necrosis factor) receptors, when activated by their respective ligands, trigger a cascade of events leading to the activation of caspases, a family of protease enzymes that orchestrate cell death. Options B, C, and D are unrelated to receptor-mediated apoptosis or caspase activation.
Option: A) Fas and TNF receptor-mediated apoptosis is also mediated by the activation of caspase.