Dharma Closes Open Windows,then Opens a New Window to Do

Dharma closes open windows,then opens a new window to do work,then closes it and reopens the first window to do more work.After watching him for a while,you explain that he can rearrange his windows and not close and then reopen them each time.Which of the following are the correct instructions to give Dharma?

A) Point to its title bar,then drag the window to its new location.If you drag it to the left or right side of the screen,it will snap to fill that half and then make the other windows thumbnails.
B) Point to a border or corner of the window,then drag the resizing pointer to make the window smaller or larger.Then click the Close button in the right corner.
C) In the right corner of the title bar,click the Minimize button.If you drag the window to the left or right side of the screen,it will snap to fill that half and then make the other windows thumbnails.
D) Point to the left corner and click the Maximize button.Then drag the window to its new location.Finally click the Minimize button and it will fill the entire screen again.