class CustomerTest $\{$

public static void main$($String$[]$ args$)\{$

Customer c$1=$ new Customer$("$user$",$"pass"$)$;

c$1.$ setUserName$("$Java$")$;

outputName$()$;

$\}$

public static void outputName$($Customer cust$)\{$

System. out.println$("$Name: $"+$ cust.getUserName$())$;

$\}$

$\}$

The instance $c1$ is not in scope in the method outputName$().$

The instance $c1$ needs to be declared in outputName$()$

The $c1$ should be returned as a return value from outputName$().$

The $c1$ should be declared at the class level to be accessed in the outputName$()$ method.

The $c1$ should be passed into the outputName$()$ method as a parameter.