Which Statement About Neuropeptides Is False

Which statement about neuropeptides is false?

A) Neuropeptide replenishment after neural activity occurs more slowly than replenishment of classical neurotransmitters.
B) Neuropeptides are only synthesized in the cell body.
C) Necessary enzymes are packed into the vesicle with the protein precursor.
D) Transport of the vesicles down the axon depends on action potential propagation.