Local/Global Scopes

Given the code below, what appears in the alert dialogue when this program runs? In the example below var message='Welcome!' is the global variable which is overwritten by the local scope message = 'Go Away!'. Even if we added the keyword VAR to message = 'Go Away!' so it reads var message='Go Away!' the answer would still remain B). "Go Away" because the var was renamed/decalred inside the function. Does this sound correct or is there something I am missing? Hope I'm not confusing myself. Thx in Advance for the help.

var message = "Welcome!";
function setMessage() {
  message = "Go away!";
}
setMessage();
alert(message);

A)."Welcome" B)."Go Away"

*B is the correct answer.

Well done! Because the var keyword isn't used to declare a message variable inside the function, the function overwrites the value in the global variable message.