What happens when minimize box is set to true?

Minimize box in title bar disappears
Minimize box is disabled
Minimize box is enabled
Minimize box becomes visible

The correct answer is: D. Minimize box becomes visible.

When the minimize box is set to true, the minimize box in the title bar becomes visible. This allows the user to minimize the window by clicking on the minimize box.

Option A is incorrect because the minimize box does not disappear when the minimize box is set to true.

Option B is incorrect because the minimize box is not disabled when the minimize box is set to true.

Option C is incorrect because the minimize box is not enabled when the minimize box is set to true.