Which Best Describes an Event That Occurs as Part of the Crossed-Extensor

Multiple Choice

Which best describes an event that occurs as part of the crossed-extensor reflex?

A) It is initiated by a painful stimulus in the ipsilateral limb.
B) It stimulates contraction of the contralateral extensor and inhibits contraction of the contralateral flexor.
C) It is initiated by stretch in the ipsilateral extensor muscle.
D) Inhibitory interneurons are activated,which synapse onto contralateral extensor muscles.
E) Monosynaptic excitatory stimulation of ipsilateral extensor muscles occurs.