Final answer:
The correct body position on a stationary bicycle is determined by the position of the foot on the pedal and the alignment of the knee with the hip.
Option C, with the heel of the foot on the upward pedal and the knee even with the height of the hips, is the correct position.
Step-by-step explanation:
The correct body position on a stationary bicycle is described as follows:
- A. With the ball of the foot on the upward pedal, the knee is above the height of the hips.
- B. With the heel of the foot on the downward pedal, the leg is straight.
- C. With the heel of the foot on the upward pedal, the knee is even with the height of the hips.
- D. With the ball of the foot on the downward pedal, the leg is straight.
So, the correct answer is C.