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

How to deal with back pain as you age 
Stay off your feet for a few days. 
Find a comfortable position and rest as much as possible for a few days. Rest in small doses.

Possible answers: (a). Working out can be uncomfortable and requires lots of rest to relieve pain. Up to three days a week is the minimum recommended amount for most people.; (b). And when you do, give your back a rest too. Talk to your doctor about pain management tips.; (c). When walking or sitting, keep a little distance. Pain from arthritis can actually make a major difference in your overall well-being.; (d). For example, lay down for two hour stretches at a time. Avoid resting for too long or the muscles will begin to weaken.;
(d).