Why was Sanchi an interest to Alexander Cunningham?

Class 12th Hitory, Question -Why was Sanchi an interest to Alexander Cunningham?

Question 15:Why was Sanchi an interest to Alexander Cunningham?

The correct answer is -i. Cunningham was supposed to prepare illustrated reports on the stupa.
ii. Sanchi draw lies both in it being a center of Buddhist heritage and an
important part in the history and archaeology of India.
iii. Any other relevant point
Any one point