In doing this geriatric interview, i decided to interview my grandfather,marvin, who i knew fairly well. he is 71 years old. he is retired now, and i chose himto interview because he is the person that i'm really familiar with. this interview wastook place at his home. this interview was took 30 minutes to finish.

The correct answer is B. Aquaculture

Explanation:

In the economy, aquaculture is an economic activity related to the farming of aquatic organisms such as fish, algae or mollusks under control conditions. This economical activity differs from fishing because organisms are not captured in their natural habitats but growth in controlled, artificial ecosystems. Aquaculture is the activity Carlos works in because he owns a fish hatchery which means he farms fish in a controlled environment, additionally, Carlos uses this activity to obtain profits.