Which of the following universities was visited by the Chinese scholars I-Qing and Xuan Zang in the 7th century CE?

Nalanda is the university visited by the Chinese scholars I-Qing and Xuan Zang in the 7th century.

Takshashila had declined long before this period and did not host them then.

Benaras, a temple-linked centre, is not the seat their records describe.

Kanchi in the south was not the university of their famous accounts.

Their writings give a rich picture of Nalanda's teachers and daily life.

Xuan Zang stayed several years and studied under the teacher Shilabhadra.