Which of the following words is closest in meaning to “Proficient”?

Proficient means skilled; expert.

• Correct answer - expert: it has the same meaning as Proficient.
• far reaching: having wide effects - wrong, it does not mean the same as Proficient.
• clumsy: awkward in movement - wrong, it does not mean the same as Proficient.
• unskilled: lacking training - wrong, it does not mean the same as Proficient.