[求助]模考中的一道语法题

The Achaemenid empire of Persia reached the Indus Valley in the fifth century B.C., bringing the Aramaic script with it, from which was derived both northern and southern Indian alphabets.

A.     the Aramaic script with it, from which was derived both northern and

B.     the Aramaic script with it, and from which deriving both the northern and the

C.     with it the Aramaic script, from which derive both the northern and the

D.     with it the Aramaic script, from which derives both northern and

E.   with it the Aramaic script, and deriving from it both the northern and

答案：C。

个人认为which指代script，所以动词应该是单数derives。另外，不知道补出定冠词the的具体理由。

请各位不吝赐教！！谢谢

同问