What sort of farming defined the first type of agriculture?

sustenance

seasonal

subsistence

supplementary

So I would say B. Seasonal

Explanation:

Wheat and barley are some of the first crops people grew. People probably started agriculture slowly by planting a few crops, but still gathered many foods from the wild. People may have started farming because the weather and soil began to change.

What sort of farming defined the first type of agriculture?

B. seasonal