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

How to stay asleep
Install blinds and blackout curtains to block out the light.
The early morning sun can wake you up before you're ready to get out of bed. Even street lights or the lights from a neighbor's home can disrupt your sleep.

Options: (a). Therefore, it's best to create a light-free zone. Blinds will eliminate some light, but adding light-blocking curtains is even better.. (b). If you have the time, make blinds and blackout curtains for your windows to block out the light as well. If you're going to be outside later in the day, consider keeping one full shade over your window to give yourself plenty of sunlight.. (c). Go to bed when it's dark. The time difference between the hours of night and nighttime hours affects whether you're snoozing or not.. (d). Installing blackout shades to keep natural light out can help block out even the brightest light sources from your house. Opt for lamps that are large enough to help block out light from your home and that are available to you in all kinds of shapes and sizes..
(a).