What Does the Following Script Do

Multiple Choice

What does the following script do
< !--
Var value = 0;
Function startTimer()
{
Window.setInterval( "updateTime() ", 1000 ) ;
}
Function updateTime()
{
Value++;
PText.innerText = value;
}
//-- >

A) It counts the number of seconds elapsed while loading the page.
B) It counts the number of milliseconds elapsed while loading the page.
C) It counts the number of seconds elapsed viewing the page.
D) It counts the number of milliseconds elapsed while viewing the page.