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

Polymath means a person of wide learning.

• Correct answer - great scholar: it has the same meaning as Polymath.
• efficient: working well with little waste - wrong, it does not mean the same as Polymath.
• ignorant: lacking knowledge - wrong, it does not mean the same as Polymath.
• mathematician: an expert in mathematics - wrong, it does not mean the same as Polymath.