Step 1: Concept
Patient counseling is the process of providing information and guidance about medications to the patient.
Step 2: Meaning
Compliance refers to the degree to which a patient correctly follows medical advice and takes medication as prescribed.
Step 3: Analysis
When patients understand how, why, and when to take their medicine, they are much more likely to follow the regimen correctly. It does not directly improve the drug's inherent efficacy or provide a diagnosis.
Step 4: Conclusion
The primary goal and benefit of patient counseling is improving patient compliance.
Final Answer: (B)