Synaptic Plasticity Can Be Demonstrated in Relatively Simple Organisms Like

Synaptic plasticity can be demonstrated in relatively simple organisms like Aplysia. Short-term habituation of the gill-withdrawal reflex to repeated stimulation of the siphon has been connected with a(n)

A) increase in the amount of neurotransmitter released at the sensory-motor synapse.
B) retraction of synaptic terminals from the sensory neurons onto the motoneurons.
C) decrease in the amount of neurotransmitter released at the sensory-motor synapse.
D) increase in the number of inhibitory synapses.