Other drugs on the market, approved to treat mild to moderate Alzheimer's, are believed to work by inhibiting cholinesterase, an enzyme that breaks down acetylcholine which is a chemical used by nerves to communicate with each other.
Can we infer the following?
Inhibiting cholinesterase can help nerves communicate with each other

Possible answers: a. Yes b. It's impossible to say c. No
The answer is:
a.