Below question has with a part of it underlined. The question is followed by four alternatives to replace the underlined part of the sentence. Choose the best alternative which is grammatically correct. In this particular job we have discovered that to be diligent is more important than being bright.

• for one to be diligent is more important than being bright.
• by being diligent is important than being bright.
• being diligent is more important than being bright.
• diligence is more important than brightness.