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

How to install shiplap
Find the vertical studs behind the drywall.
Run an electronic stud finder horizontally along the wall until you can locate the studs. The stud finder will flash an led bulb or emit a beeping sound when it's placed over a stud.

Options: (a). Identify studs in the wall that you wish to install your shiplap in. Tap on the first stud, then walk towards the wall.. (b). If you can't find the vertical studs, you can see them by drawing a straight line across the wall with a pencil. To provide a smooth 180 degree angle to the vertical studs, run the wiring through the horizontal studs where they meet.. (c). Its primary function is to corder the stud so that it goes in the direction of the wall's seams. Locate the first row of studs.. (d). Work slowly so that you can be precise, and aim to mark the exact center of each stud. Use a pencil to place a light mark at the center of each stud..
(d).