Which statement is true regarding flexibilty

A joint's range of motion cannot be maintained with age. A joint's range of motion will be lost if the joint is not used regularly. Flexibility decreases with age because muscle strength increases. Flexibility decreases at a rate predetermined at birth.^-^

Hoped I Have Helped Have A Nice Day "Peace"

answer; i believe that the correct answer is (b) is a factor associated with physical activity and heart disease;