According to Postan, what were TWO reasons why there was limited science during the Middle Ages?

c

Explanation:

herodotus taught this. herodotus was an ancient greek historian who was born in halicarnassus in the persian empire. he is known for having written the book the histories, a detailed record of his "inquiry" on the origins of the greco-persian wars.

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.