Answer:
The correct answer will be option B.
Step-by-step explanation:
In the given question, Letitia works with horses mainly horse riding.Since he is working with an animal he is considered to work in animal system.
Another person Jared work of supplying the food to the market and add the information in the computer which is considered a work of dealing with food products and processing it to the market.
Duane works in the role of a scientist by analyzing the soil and water samples. Since he is working with natural system, the work is considered of Natural Resource Systems.
Thus, option B is the correct answer.