Becky used to be able to touch her toes while standing, but now she cannot reach them. what aspect of her physical fitness has changed over time? a. her endurance b. her enthusiasm c. her range of motion d. her muscular strength

The answer is "C. her range of motion".

Flexibility is the capacity of each joint to travel through the accessible scope of movement for a particular joint. Examples would be stretching individual muscles or the capacity to play out certain practical developments, for example, the thrust. The sit and achieve test is regularly used to test adaptability.  

Flexibility relies upon numerous factors: age, sexual orientation, body creation, conduct propensities are only a couple. Insufficient adaptability can prompt loss of intensity and potential damage.