A nursing instructor is teaching about rivastigmine (Excelon). A student asks, "How does this work? Will this cure Alzheimer's disease (AD)?" Which is the appropriate instructor reply?

"This medication delays the destruction of dopamine, a chemical in the brain necessary for memory processes. Although most effective in the early stages, it serves to delay, but not stop, the progression of the AD."

"This medication encourages production of NMDA, a chemical in the brain necessary for memory processes. It delays the progression of the disease."

"This medication encourages production of acetylcholine, a chemical in the brain necessary for memory processes. It delays the progression of the disease."

"This medication delays the destruction of acetylcholine, a chemical in the brain necessary for memory processes. Although most effective in the early stages, it serves to delay, but not stop, the progression of the AD."