A personal pronoun is .
any word that takes the place of a proper noun
a word that takes the place of a proper noun specifically associated with a person or speaker
any word that takes the place of a noun
None of these
In the given sentence, to which grammatical object does “they” refer?
If only Kevin and Charles had thought to talk to the umpires, they would have avoided the whole problem.
The whole problem
Kevin and Charles
The umpires