It would be a or d because it was during in the byzantine time
Bodies of water, specifically rivers.
He thinks that it's important for city people to understand the process of food making and to eat responsibly because if they are not connected to their food and don't think about it, they won't appreciate the farmers who worked hard to make it. If people eat responsibly there will be a greater democracy according to him.
I think that this question was asked by a bot made by brainly.