A programmer is trying to create some simple code to print the players name:

public class PrinterPlayerName : MonoBehavior

$\{$

$[$SerializedField$]$ GameObject player;

private void Start $()$

$\{$

Debug.Log$($player$.$name$)$;

$\}$

void printPlayerName$($GameObject player$)\{$

Debug.Log$($player$.$name$)$;

$\}$

$\}$

However the following error is being printed to the Console: "UnassignedReferenveException: The variable player of PrintPlayerName has not been assigned." Why is this happening?

A$.)$ The GameObject does not have a name field inside.

B$.)$ The wrong GameObject was assigned in the Inspector

C$.)$ The player variable should be public to be able to assign it in the Inspector

D$.)$ The player GameObject was not assigned in the Inspector