Choose the correct form of adjective for the given sentence:
A man who is ______ is sure to succeed.

- Indigenous: originating or occurring naturally in a particular place; native
- Industrial: relating to or characterized by industry
- Industrialized: (of a country or region) having widely developed industries
- ​Industrious: diligent and hard-working
- The word 'succeed' used in the sentence indicates that one has to do hard work to achieve something that one desires.
- Hence in the given blank part of the sentence, the correct choice will be the 4th option i.e. industrious.
- ​Correct Sentence: A man who is industrious is sure to succeed.