An example of a brand name for a drug is:

A) 1-dioxide
B) amoxicillin
C) piroxicam
D) Polymox.

Brand names for drugs are typically unique and easy to recognize. Polymox is a good example of a brand name because it is distinctive and suggests its purpose as an antibiotic medication, indicating its active ingredient amoxicillin. Option A, 1-dioxide, is unremarkable and does not suggest any medical purpose. Option B, amoxicillin, is the generic name of the medication, not a brand name. Option C, piroxicam, is also a generic name and not a brand name.