I do believe it A new trade market
The answer is 2: to increase the amount of land available for agriculture.
Reason:
If I remember correctly from Geography last year that is called terrace farming. Common practice in hilly areas where you would be unable to plant crops. Instead, they flatten that out and have “steps” that gives them flat land to grow crops, often rice.
He is trying to find things that interest him, he isn't trying to find things that isn't going to interest him.
( to be honest I don't know hope this helps )
