Question:
Which attribute is necessary for HTML control to work as a HTML server control?

Option A):
runat=web-server
Option B):
ID=web-server
Option C):
ID=server
Option D):
runat=server

Correct Answer is Option D):
runat=server

Explanation:
The HTML server controls are HTML elements that include a runat=server attribute. HTML server controls provide automatic state management and server-side events. The runat=server attribute is necessary for HTML control to work as a HTML server control.