The answer would be A. Listen, my children, and you shall hear. This is because the word children means more than one child, in other words more than one noun. B. is not the answer because a legislature is only one. C. is also wrong because it is describing each type of noun. There is one butcher, one baker, one candlestick maker. D. has no nouns except mercy which is not a collective noun. The answer is A. Listen, my children, and you shall hear.