What must you do to provide this functionality?

You have designed a form with two content canvases. The window for the first canvas was
created implicitly, and you have not changed its default properties.
You want users to be able to navigate between the canvases easily while viewing both
simultaneously. Therefore, you create a second window, changing only its name from the default
properties.
However, when you test the form, you find that you are unable to close either window. What must
you do to provide this functionality?

A.
Change the second window to a modal window.

B.
Code a When-Window-Closed trigger for each window.

C.
Set Close Allowed to Yes for both windows.

D.
Set Hide on Exit to Yes for both windows.

Explanation:
Note:
Modal & Modeless Windows in Oracle Forms
A window in oracle forms is a container for all visual objects that make up a Forms application.
You can create two different type of windows in oracle forms. Lets have a brief comparisons
between these two types of windows.
* Modal Window:
A modal window is a restricted window that the user must respond to before moving the input
focus to another window. Modal windows:
Must be dismissed before control can be returned to a modeless window
Become active as soon as they display
Require a means of exit or dismissal
* Modeless Window:
A modeless window is an unrestricted window that the user can exit freely. Modeless windows:
Can display many at once
Are not necessarily active when displayed
Are the default window type