'''A.''' The time when one feels he/she needs more input from people for further progress is the time where it would be the best to present. This is important as this might help in keeping the work going on even if there are some barriers in the progress. <br /> <br /> <br />

After a number of iterations of such presentations, many payload ideas get eliminated and once the team is down to the top 3 or top 5, a meeting of the entire team with the Faculty Advisers can be held, wherein the best payload is selected.