I believe the answer is C. Correct me if i'm wrong :)
Let him have a day off and find a replacement
Sustainable nutrition means eating foodstuff from sources
that protect the environment and food stocks in the long term. Much of our
foodstuff unfortunately does not come from sustainable sources. If you are a
teacher, you must start introducing children to the topics of environmental
science and agriculture so they can understand the relationship between environment
and agriculture.
