Identify the sentence below that contains no slang, pretentious language, wordiness, or negative tone.
a
We are experiencing some difficulties at the present time because a considerable number of sponsors want front-page advertising on the brochure for the event.
b
One problem we’re dealing with now is that many sponsors want front-page advertising on the event brochure.
c
A large number of the sponsors have requested advertising on the front page of the event brochure, a factor that is causing considerable difficulty for us at the present time.