Select the true statements (more than one) about the characteristics of sensory neurons in the stretch reflex. a. These sensory neurons transmit afferent impulses toward the spinal cord (CNS). b. When a stretch activates the muscle spindle, these sensory neurons transmit impulses at a higher frequency. c. These sensory neurons transmit efferent impulses to antagonist muscles. d. These sensory neurons typically transmit efferent impulses toward antagonist muscles. e. These sensory neurons transmit impulses to the spinal cord via interneurons.