You work for a Web solution development company named ABC.com. You need to determine
which page class element is utilized to determine if pages are loaded first or in response when the
Page class is processed.
Which Page class property or event is responsible?

A.
You should consider utilization of the IsPostBack property.

B.
You should consider utilization of the LoadComplete event.

C.
You should consider utilization of the PreLoad event.

D.
You should consider utilization of the OnLoad event.

Explanation:
Developers should note that the IsPostBack property of the Page class is utilized for
getting the value informing the developer if the if the page is loaded in response or if loaded the
first time by returning true if the page is loaded in response to a client postback.