Question

Read the sentence.

Our teacher told us a story about a Pony Express rider.

Which is the object of the preposition of this sentence?

story

rider

teacher

Answer 1

I believe it’s A. Story is the preposition.

Answer 2

Preposition: about
Prepositional phrase : about a pony express rider
Now ask your self :
What is about a pony express rider ?
The answer : a story :)