challenge: What happens to the total torque delivered to each wheel in low traction situations with a standard differential?
  
  A. The total torque is split unevenly between the wheels
  B. The total torque is increased to compensate for the low traction
  C. The wheel with the most traction receives the most torque
  D. The total torque is limited to the torque required to make the wheel with the least traction slip
  Answer: 