Analyze Figure 8

Analyze Figure 8.14. In the text Which of the following can be concluded from these data?

A) Mechanosensory neurons that innervate muscle spindles are activated when the muscle is stretched
B) When both alpha- and gamma-motor neurons are active, mechanosensory neurons are silent during a muscle twitch
C) alpha- and gamma-motor neurons are always activated simultaneously during muscle contraction
D) all of the above are accurate statements regarding these data