Multi-choice problem: Continue writing the next sentence in this paragraph:

How to sleep with a snoring partner 
Wear ear plugs. 
The simplest and quickest way to sleep better next to someone who snores is to simply buy a pair of ear plugs. You will want to shop around for the type that fits your ears best.

Options are: (a). To ensure that they are the right fit, read your local product reviews to see which ones sound best. Get your partner to accompany you during the night.; (b). They are most likely designed for your particular needs. Plastic or silicone ear plugs won't work for sleeping alone.; (c). Ear plugs can be found in almost any store that has basic medical supplies. You may need time to adjust to wearing the earplugs as you sleep.; (d). Make sure the model is made for your hearing. There are over 200 models available for a reasonable price.;
(c).