What is the difference between abstract nouns and concrete nouns?

A. Concrete nouns can be identified by the senses, but abstract nouns can't.

B. There is no difference.

C. Abstract nouns are specific, but concrete nouns aren't.

D. Abstract nouns describe something, but concrete nouns don't

The answer to this is A.

The correct answer is A. Concrete nouns can be identified by the senses, but abstract nouns can't.

Concrete nouns determine something you can touch, smell, feel, things like a chair, wall, bed, etc. - things around you. On the other hands, abstract nouns usually describe feelings you can't really touch, such as anger, love, hate, etc.