Hello dear, the article was not provided. But from the context of the question and the available options, the answer is;
B. The farther food travels, the worse it is for the environment.
Explanation:
Food miles refers to the long routes food has to pass through before it gets into the hands of the consumer. The process of transporting food can have negative impact on the environment. Greenhouse gases as well as carbon are emitted in the environment, thus causing an inimical health and environmental challenge.
This is the reason why Island School wants to grow its food. They wish to contribute to a sustainable environment.