A Patient Asks Why His Drug to Control High Blood

A patient asks why his drug to control high blood pressure has only one generic name and two different trade names.What is your best response?

A) "Most drugs have different trade names that indicate different dosages."
B) "The two different trade names indicate that one is a more pure and safer drug than the other."
C) "The generic name is the actual official drug name and the trade name is a brand owned by a specific manufacturer."
D) "If you have insurance,you can get the trade name drug,which is usually more expensive than the generic named drug."