Candy is a :

A noun is a part of speech in the Engish grammar that refers to a person, place, animal, idea, feeling, thing, etc. Nouns could be Countable nouns and Uncountable nouns. Countable nouns are the ones that can be counted/quantified. E.g. Apples, cars. Uncountable nouns are the ones that cannot be counted. E.g. water, air. We can count the number of candies; hence option C is correct. A proper noun refers to a name of a person, place, thing, etc., and they are usually capitalised. E.g. India.