What is the word in bold? Mice have poor eyesight but keen senses of hearing and sme a plural possessive noun a plural noun

The question is asking for the grammatical category of the word in bold, which is "senses". In the sentence, "senses" is used as a plural noun, referring to the ability to perceive stimuli. It is not a plural possessive noun, as it does not show possession or ownership. Therefore, the correct answer is "a plural noun".