The correct answer is A, angry.
Whereas he is secretive in the beginning when he doesn't want to show his identity to the Hobbits, and he is definitely brave and devoted, he doesn't really show the emotion of anger, either in the movies, or in the books.
Here are the three ways :
1. Opening job opportunities for the people
Let's say for example that you open a small restaurant, you need at least 3 people to run it, which means 2 new people will get a job opportunity
2. It's generate more taxes for the country
More profitable business that exist in the country means that more income the government could get to distribute welfare to the people
3. It's attracting foreign investment
This will strengthen the value of the country;s currency
