Multiple if then

IF you see

Add a final else clause to this conditional statement so that if the isAdmin variable and isStudent variables are both false an alert opens with the message "Who are you?"

The question is misleading ok.

There is no "final:" clause.

You would add multiple stacked if then conditionals.

var isAdmin = false;
var isStudent = false;

if ( isAdmin ) {
    alert('Welcome administrator');
} else if (isStudent) {
    alert('Welcome student');
} else {
  alert('Who are you?');
}