Given the following set of classes, what would need to be fixed to make the program work?

public class Customer $\{$

private String userName;

private String password;

public Customer$($String userName, String password$)\{$

this.userName $=$ userName;

this.password $=$ password;

$\}$

public void setPassword$($String password$)\{$

this.password $=$ password;

$\}$

public String getPassword$()\{$

return password;

$\}$

public void setUserName$($String userName$)\{$

this.userName $=$ userName;

$\}$

public String getUserName$()\{$

return userName;

$\}$

$\}$

class CustomerTest $\{$

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

Customer testAcct $=$ new Customer$("$user$",$"pass"$)$;

testAcct.setPassword$("$Java$")$;

resetAcct$()$;

$\}$

public static void resetAcct$($Customer acct$)\{$

acct.setPassword$("")$;

acct.setUserName$("")$;

$\}$

$\}$

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

The instance testAcct is not in scope in the method resetAcct$().$ The instance testAcct needs to be declared in resetAcct$()$

The testAcct should be returned as a return value from resetAcct$().$

The testAcct should be passed into the resetAcct$()$ method as a parameter.