Multi-select problem: How does the next paragraph end?

How to size a ceiling fan
Measure the square footage of your room.
This will help you determine what diameter ceiling fan will fit in the space.
Measure the length and width of your room, then simply multiply the measurements together.

Choose your answer from:
A). Determine your ceiling size by multiplying the width of the room by 2 to determine the size of the fan. The ideal size for ceiling fans is anywhere from the length of a switch to 50 centimeters (101.4 in) long..
B). For example, if your room is 12 feet by 12 feet, multiply by 12. Note that a 30 foot ceiling fan will fit in an average room..
C). For example, if you have two bedrooms, multiply the square footage by 3. If you have two baths, multiply the square footage by 4..
D). This will give you the square footage of your room. When looking at the diameter of different brands of fan, you may find the diameter of its span listed as its " sweep..
D).