Final answer:
The expression 'to drive another nail in the coffin' means to damage or harm something further.
Step-by-step explanation:
The expression to drive another nail in the coffin means b) To damage or harm something further. It is often used figuratively to describe actions that worsen a situation or make it irreparable. Just as driving a nail into a coffin makes the coffin more secure and final, driving another nail in the coffin metaphorically refers to actions that further contribute to the demise or failure of something.