The correct answer is: D. notable
A notable person is one who is well-known and respected for their achievements or qualities. In this case, the merchant is renowned for his simple way of living, which suggests that he is a person of high moral character.
The other options are incorrect because:
- A. notorious means well-known for something bad or evil.
- B. famous means well-known throughout a country or the world.
- C. unknown means not known by many people.
I hope this helps! Let me know if you have any other questions.