Which of the following statements are correct?

A. In the Mahaparinibbana Suttanta, Buddha enjoins Ananda to erect at the crossing of four highways a stupa over the remains of his body

B. The earliest of the stupas consists of a hemispherical dome (anda).

C. The dome is surrounded by a Pradakshinapatha or passage or circumambulation.

D. On the four sides of the stupa are four gateways called harmika.

E. Kanishka erected a pagoda at Sanchi.