Which Statement About Synapses Is True

Multiple Choice

Which statement about synapses is true?

A) Synaptic changes involved in memory are so small that they are impossible to observe, even with a microscope.
B) Once a synaptic pathway forms, it will remain indefinitely.
C) Unlike muscles, synapses don't respond to training and die back after a set period of time.
D) Just like muscles, synapses respond to training; they can form or die back depending on use.