Write the next sentence in the following story.

How to hang a sun shade
Spread the sun shade out in the designated area.
While you can simply measure instead, spreading the fabric out will give you a much better idea of what it will look like when it's installed. You can move it around and adjust where you want it to go.

pick from the following.
(a). After all, its placement is extremely important to make sure you'll be able to see it from a distance. Be sure that there are no gaps in the fabric or where the sun light shines through..
(b). Find a flat surface where the sun shade will be visible from all sides of it. You're going to be hanging this shade up, so it needs to be close to whatever you want..
(c). For example, if you're looking for an umbrella shade for your backyard, make sure to measure the wall and trim before, during, and after construction. This will give you a good idea of how much work that shade could take up..
(d). Keep in mind you can install sun shades at an angle from the ground, which will reduce some of the width or length of the shade, depending on how you angle it. Determine where you will attach the shade... The answer should be
(d).