Given below are four jumbled sentences. Pick the option that gives their correct order.
A. New ideas on marketing were brainstormed and all the members agreed to try them forthwith.
B. Upon their return from anoff-site camp Ravi and Sunil decided to hold a meeting.
C. As soon as everyone assembled, the meeting which lasted for four hours, began.
D. Its purpose was to replace some of the old ways of marketing used by the company with new ones.