A physician prescribes 20 mg/day of nicotine for Robert as part of nicotine-replacement therapy. The dosage can be administered in the form of nicotine lozenges (available as 2-mg and 4-mg lozenges) or nicotine gum (available as 2-mg and 4-mg pieces of gum). What is the appropriate combination of gum and lozenges required to administer the required dosage?
A. One 4-mg lozenge and three 4-mg pieces of gum
B. Five 2-mg lozenges and five 4-mg pieces of gum
C. Two 2-mg lozenges and seven 2-mg pieces of gum
D. Four 2-mg lozenges and three 4-mg pieces of gum
Answer: D
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