Stimulation of the Golgi tendon organs result in which of the following changes in the reflex arc?

A) Stimulation of a stimulatory interneuron
B) Stimulation of an inhibitory neuron
C) Decreased action potentials in alpha motor neurons
D) Contraction of skeletal muscle fibers
E) Both "stimulation of an inhibitory neuron" and "decreased action potentials in alpha motor neurons" are correct.

Golgi tendon organs are sensory receptors located at the junction of muscles and tendons that detect changes in muscle tension. When they are stimulated, they activate an inhibitory interneuron in the spinal cord, which in turn inhibits the activity of the alpha motor neurons. This leads to a decrease in muscle contraction, protecting the muscle from excessive tension. Therefore, both "stimulation of an inhibitory neuron" and "decreased action potentials in alpha motor neurons" are correct responses.