Is the rank a function of the player name?

Is the player name a function of the rank?

Select the correct answer below:

Rank is a function of player name but player name is NOT a function of rank.

Rank is NOT a function of player name but player name is a function of rank.

Rank is NOT a function of player name AND player name is NOT a function of rank.

Rank is a function of player name AND player name is a function of rank.