Where did Harshavardhana organize the Mahasabha in 643 AD for the honor of Hiensang and for the propagation of Mahayana religion? I got it done?

Where did Harshavardhana organize the Mahasabha in 643 AD for the hono

1.	Where did Harshavardhana organize the Mahasabha in 643 AD for the honor of Hiensang and for the propagation of Mahayana religion? I got it done?
A.	Kannauj
B.	Thaneshwar
C.	Prayag
D.	Ujjain
Answer» B. Thaneshwar