This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to create an indoor tent
Create a classic fort-tent.
This tent is definitely one you'll need to take down at the end of the day or in a day or two. Drag pieces of furniture together.

Pick your answer from:
(a). Throw fabric over the top, such as a large sheet, and weigh down the sheet on the outside with pillows. If you place chairs facing outward, throw the sheet over the tops, and let it hang down to the seats on the outside.
(b). Get a piece of wood and glue it in line with the front edge of the tent, putting the pieces of furniture sideways. Tie a piece of string to the end of the construction piece and tie it to the base of the tent.
(c). Depending on the size and width of your sleeping area, a rectangular bed or square table work well. Fill each upholstered piece with a rectangle of wood or felt, and cover any exposed perimeter.
(d). Find or make a bench for the log fort, if you have one. Cut pieces of plywood around the edges of the top or bottom of the frame.
The answer is:
(a).