I believe the correct answer is A. has a double meaning, both of physically punishing and the hammering that a blacksmith does.
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In this excerpt from âGreat Expectationsâ written by Charles Dickens, the action of "hammering" has double meaning, both of physically punishing Joe and his mother (âhe hammered away at my mother, most onmercifulâ), and the hammering that blacksmith does (âhe didn't hammer at his anwil.â).