Final answer:
The correct answer is b) Repeatedly.
Step-by-step explanation:
The correct answer is b) Repeatedly.
In this sentence, the man is being punched multiple times in a repetitive manner. The word 'repeatedly' means to do something again and again. This is the most appropriate word to use in this context because it conveys the meaning of continuous action.
For example, if someone is repeatedly punched, it means they are being punched multiple times in a row, without any breaks.