Question

Individuals need to adjust their physical activity to account for __________ as they age.

Answer 1

Individuals need to adjust their physical activity to account for reduced flexibility, a loss of balance, as well as decreased energy levels as they age. As we see, there is a number of rather unwanted changes which happen with old age so the correct answer would be D - all of the above. 

Answer 2

Individuals need to adjust their physical activity to account for reduced flexibility, decreased energy levels, and a loss of balance as they age.

$\sf\ Answer:\ D)\ ALL\ THE\ ABOVE$