Everyone who has worked for him hammers home that point because they feel that it is widely unappreciated.

The correct answer is B. stresses.

To “hammer home” something means to emphasize it repeatedly, often in a forceful or insistent way. This is the best match for the context of the sentence, which suggests that everyone who has worked for him has repeatedly emphasized the point that he is widely unappreciated.

The other options are not as good matches.

• To “hint” at something means to suggest it indirectly, without explicitly stating it. This is not the same as emphasizing something repeatedly.
• To “strike” something means to hit it forcefully with a sharp object. This is not the same as
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