Case 8-2 David Is Adding a Clear Form Feature to the Pete's

Case 8-2
David is adding a clear form feature to the Pete's Italian Pies Web site, and has written the following code:
function doClear() {
document.PizzaForm.customer.value = "";
}
-Referring to David's JavaScript above,the text control is assigned the name ____,and it is an element within the form object that you named PizzaForm.

A) document
B) Pizza
C) value
D) customer