I don't mean to come off as rude, but it's a quiz about the apostolic father's. I thought it would be assumed to be from the perspective of the church. Mabye I am misunderstanding your criticism, and some clarity would help.
The Bishop of Rome is the Pope. Among experts, there’s no disagreement as to whether Clement was the Bishop of Rome.
Perhaps you disagree that the Bishop of Rome holds a sort of distinction above other Bishops, but the fact that the Pope is a specific title for the Bishop in Rome supports the fact that calling Clement a Pope is not erroneous.
Perhaps you disagree that the Bishop of Rome holds a sort of distinction above other Bishops, but the fact that the Pope is a specific title for the Bishop in Rome supports the fact that calling Clement a Pope is not erroneous.