A personal pronoun is .
any word that takes the place of a 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 proper 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
The umpires
Kevin and Charles