Question

Identify the preposition.

The newscaster filed her reports about the riots.


filed
about
riots
reports

Answer 1

About.

Answer 2

Here is what a preposition is:

a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause, as in “the man on the platform,” “she arrived after dinner,” “what did you do it for ?”

Answer 3

Yes, it is about.