Answer: Option 'b' is correct.
Step-by-step explanation:
Descriptive adjectives are those adjectives that can be defined as the type of person, shape of a person, color of any thing , that is generally to describe a person, place, animal or thing.
So, It is any word that included a noun and an adjective.
For example:
The<u> old </u>man asked the <u>pretty </u>girl for food.
here, old is a descriptive adjective to describe a man.
And pretty is a descriptive adjective to describe a girl.
Hence, Option 'b' is correct.