How is a default button designated?

Default keyword in the definition of the button
Setting the setfocus property to on
Keeping the button at the bottom of the form
By connecting the AcceptButton property to it

The correct answer is: D. By connecting the AcceptButton property to it.

The AcceptButton property is a property of a form that specifies which button on the form is the default button. When the user presses Enter on the keyboard, the default button is clicked.

The other options are incorrect because:

  • The Default keyword is used to specify the default value of a control. It is not used to designate a default button.
  • The SetFocus property is used to specify which control should receive the focus when the form is loaded. It is not used to designate a default button.
  • The position of a button on a form does not affect whether it is the default button.

I hope this helps! Let me know if you have any other questions.