You are presented with the question "A good way for older adults to strengthen bones is to " and the following answer choices: 
- Through play
 - drive more slowly
 - exercise
 - use a hearing aid
 - quadriceps
 - donate bone marrow
 - sweating
 - movement

Now knowing that exercise increases a body 's strength and strength training is also effective for increasing bone strength in older adults, choose the best answer.


 

   exercise      