Which statement could be used to determine the value of the first radio button?

Consider the following code:

Which statement could be used to determine the value of the first radio button?(Exhibit)

Consider the following code:

Which statement could be used to determine the value of the first radio button?(Exhibit)

A.
document.rdoGroup1.value

B.
document.myForm.rdoGroup1[0].value

C.
document.getElementById(rdoGroup1).value

D.
document.getElementById("rdoGroup1").value