Umm, its bad I think.
Lack of sleep can lead to many diseases and problems. Sleep is one of the basic requirement like food, water and air.
Playing with them or simply letting them rant and giving advice. Maybe helping out in some way
The correct answer is B.
People over the age of 65 should be as physically active as their health and bodies allow. Everyone ages differently and some will be more able to do higher intensity exercise while others will be able to do low or moderate. Completely depends on the person.