What is the primary difference between proficiency and currency?

What is the primary difference between proficiency and currency?

• A. Proficiency means you meet the minimum legal requirements; Currency relates to knowledge and skills.
• B. Currency means you have knowledge, skills, and recent experience; Proficiency is a personal standard.
• C. Proficiency must pass a ground test
• D. Proficiency means knowledge, skills, and recent experience; Currency means you meet the minimum legal requirements.

Answer: (D)