Final answer:
The section 'Dosage and Administration' in a package insert details how a medication should be taken, which is crucial information when a prescription states 'take as directed'.
Step-by-step explanation:
The section of the package insert that provides information about how a medication is usually taken is B. Dosage and Administration. This section includes information about the recommended dosing schedule, dosage forms, and how to properly administer the medication. If a prescription says 'take as directed', you would refer to this section of the package insert for guidance on how to take Chantix, as prescribed by Mr. Quarterman.