challenge: What is the primary benefit of a larger moment arm in a muscle?
  
  A. It increases the muscle's ability to produce torque with the same amount of force
  B. It reduces the distance the muscle needs to contract to achieve the same movement
  C. It allows for a greater change in joint angle with the same amount of length change
  D. It enables the muscle to produce less torque with the same amount of force
  Answer: 