Great ability and knowledge of some subject or activity.

Great ability and knowledge of some subject or activity.

• A. Proficiency
• B. Competence
• C. Expertise
• D. Mastery

Answer: (D)

Mastery conveys the highest level of skill and understanding, where someone not only knows a subject well but can apply that knowledge consistently with exceptional quality across different situations. It implies deep, transferable ability, the capacity to solve complex problems, and often the role of guiding or mentoring others. That makes it the best fit for describing “great ability and knowledge” of a subject or activity. The other terms describe strong capability as well but don’t reach the same level. Proficiency is solid, competent performance; competence means meeting required standards; expertise indicates deep knowledge, but mastery goes beyond by emphasizing sustained excellence and versatile application across contexts.

Mastery conveys the highest level of skill and understanding, where someone not only knows a subject well but can apply that knowledge consistently with exceptional quality across different situations. It implies deep, transferable ability, the capacity to solve complex problems, and often the role of guiding or mentoring others. That makes it the best fit for describing “great ability and knowledge” of a subject or activity.

The other terms describe strong capability as well but don’t reach the same level. Proficiency is solid, competent performance; competence means meeting required standards; expertise indicates deep knowledge, but mastery goes beyond by emphasizing sustained excellence and versatile application across contexts.