Correct Answer : Preinit
Explanation :
1) PreInit : This event is also useful when you are dynamically (from code) set values such as master page, theme or dynamically created controls for a page.
2) Init : This event fires after each control has been initialized.
3) InitComplete : This event fires all initializations of the page and its controls have been completed.
4) PreLoad : Executes before view state has been loaded for the page and its controls and before PostBack processing.
5) Load : This event checks for PostBack and then sets control properties.
6) Control (PostBack) event(s) : This event fires when any events on the page or its controls that caused the PostBack to occur. For example button’s click event.
7) LoadComplete : At this point all controls are loaded.
8) PreRender : This event fires after all regular PostBack event have taken place. It is executed before saving ViewState.
9) SaveStateComplete : If anyone makes changes to the page’s controls at this point or beyond, they are ignored.
10) Render : This event generates the client-side HTML, DHTML, and script that are necessary to display a control at the browser.
11) UnLoad : This event is used for cleanup code.