I believe they invented sonar equipment to see enemy u boats from Germany
I would say B, not 100% sure
They have a road from middle east to africa and they would use Merchant ship routes.
They pledged mutual allegiance
First of all to answer your question we need to know what Clustered rural settlement is. it is when houses and farms of families are located close to each other and border the settlement. most common Clustered rural settlements were situated in New England