Domesticated Plants and Animals while building permanent settlements in agricultural hearths
The compositional innovations are referred to styles or forms of music during last centuries and today they are studied by great musicians.
The order from earliest to latest is the next:
1. The Guidonian Hand. It comes from around 416 to XV century.
2. Polyphony. Its origin is from IX approximately.
3. Organum. The historian put it around XI and XII.
4. Motet. At century XII.
Heyo, I believe your answer would be C. Closed Door Policy. It's the only one that makes most sense out of the three choices.
By making it easier to fight
True is the answer! Hope this helps
