Because you cannot test it or observe it.
A scientific theory are created through the scientific method, in the scientific method you need to be able observe it and experiment.
C scientific law is something that's always going to be true
The most likely meaning of this world would be c - ancient. This is probably true because when you think about it, when you're talking about an archetype, you're not talking about something dead nor extinct, neither about ruins, but you might be talking about something ancient - and the same goes for archaeology.
