Once a skeletal muscle cell begins to shorten during an isotonic twitch contraction,
a. the amount of force generated by the muscle will start to decrease
b. the muscle will continue to shorten until the force generated by the muscle stops increasing
c. the muscle will stop shortening once the force is greater than the load
d. the amount of force generated by the muscle will remain constant
e. the amount of force generated by the muscle will continue to increase
