Based on the premise "Before Paris became the national capital, it was the home of the medieval dukes of the region that is still known as the Ile-de-France ' which, by gradually asserting itself over other duchies such as Burgundy and Normandy, imposed its name on the whole country.", can we conclude the hypothesis "Paris was the home of the medieval dukes of the region." is true (see options)?

Available choices:
[I] yes.
[II] it is not possible to tell.
[III] no.
[I]