Which definition best describes professional?

• A. Not qualified to practice
• B. Performing an activity to earn money instead of to relax or have fun
• C. Possessing the necessary qualities
• D. Relating to or suitable for a specific profession

Answer: (D)

Meaning in context: professional describes what belongs to a profession or is appropriate for work conducted in a professional setting, signaling training, standards, and ethics. The option that states relating to or suitable for a specific profession captures this sense most precisely. It signals that something is connected with a profession and appropriate for its standards, not simply about being paid or about having general qualifications. The other descriptions miss that direct profession link: one is the opposite of professional, another emphasizes payment rather than the professional context, and another is too vague about formal, standards-based connotation.