detailed solution

Correct option is B

• The above statement is a locution. An idiom or locution is an expression, word, or phrase that features a figurative meaning. The meaning is kind of different from the literal meaning. For example, after we say it's raining cats and dogs, it means it's raining heavily.
• Option A: STONE is inaccurate because it doesn't form the specified meaning within the sentence.
• Option B: BRICK is the correct answer. The entire idiom is – he's so adamant that now and then, it's like rebuking a brick wall. This set phrase is employed for somebody who refuses to concentrate on you.
• Option C: WOODEN is inaccurate because it doesn't form the desired meaning within the sentence.
• Option D: ROCK is wrong because it doesn't form the specified meaning within the sentence.

Hence,  option C is the correct answer.