Aparticiple is a verb acting as a(n)
adjective
adverb
noun

The answer is adjective.

Explanation:

Participle is a non-finite verb form that doesn`t have the function of the verb, but as a noun modifier, that means that its primary function is function of an adjective.

There are two types of participle - present participle and perfect participle. Present participle ends on -ing, the ending of perfect participle depends on whether the verb is regular or irregular; its form we can find in the third colon of conventional verb naming (to see - saw - seen; to play - played - played).

For example:

I met a singing man.

She solved a complicated puzzle.

They visited a forbidden place.

i think it may be b, i'm not exactly too sure on this. but b seems to make more sense.