Write the next sentence in the following story.

How to deal with a knee sprain
Rest your knee for the first 48 hours after injury.
Rest is the first and most important measure for knee sprain. Rest will not only decrease pain but can also prevent further injury to the knee.

OPTIONS:
(a). Take days off from work, and rest will replenish your strength. Ice will help to reduce swelling and strain.;
(b). Consider the use of crutches to keep the weight off your injured knee. However, many doctors say that you should actually not keep your injured knee immobile for too long.;
(c). If you have a knee injury, consider sleeping in an inactive position or going to bed in a recliner. If you have recently been injured, try sleeping while the wound is healing.;
(d). Rest will help to reduce the swelling and increase circulation to the area. You should also keep your leg elevated so that it won't grind against you.;. The answer should be
(b).