Answer:
He should be made to understand that formularies must be developed with input from health practitioners such as pharmacists,doctors, etc.
Explanation:
Mr. Nguyen is suspicious about how plans establish these formularies. His suspicions should be allayed by explaining the basic principles of how formularies are established.
This involves the input of Health practitioners or experts who focus on various properties of the formularies to ensure it has a high efficacy and fit for consumption.
