Read the following passage:

I want to be a vocal advocate for nature. I believe so strongly in being a benefactor for the outdoors that I recently helped a group with a river cleanup. I was mortified to see the destruction of animals and plants. When I got home, I composed a letter to my state politicians and asked them to allocate more money to the local river cleanup effort. I believe my vocation is to help citizens see that we are at a junction. We can decide to subject nature to abuse, or we can decide to be a benefactor to nature. I won't let obstacles detract from my mission.

The prefix, root, and suffix in the word "benefactor" as they are used in sentence 2 give us an approximate definition. Which of the following definitions is accurate?

A person who does good
The state of doing good
The result of something good
To make something good