East Africa and the Basin and the Range Province of the United States are examples of a
|c.||transform plate boundary.|
|d.||passive continental margin.|
Answerb.Continental Rift East African rift is an acive rift, continental in East Africa which will bring to life two new plates, namely Nubian plate( larger, and will make up most of Africa) and Somalian plate( smaller plate).
Basin and Range province has undergone excessive extension and thus thinning of crust.It has various faults, both in numbers and extent which show roughly N-S trend. Along these faults,mountains uplifted and valleys formed producing distinctive alternating pattern of linear mounain ranges and valleys.