Answer:
About half or less of journalists and media executives say that in reporting on personal and ethical behavior of public figures, news organizations don't fully report the hard facts and report more on controversies.
Explanation:
The error in the sentence is that the sentence contains a verb voice shift
Its not run on, it has the subjects, and I don't see any issues with the punctuation.
I think the correct answer is possessives
d) Could you?