The actual description for the tower scene comes with links to writeups examining what, exactly, would be necessary to get that affect. I assume it comes from there, not really having the ability to comb through them atm.
Also, i am confused as to why option A has an asterisk on it given that it is a simple removal of one of the FBS requirements, as near as i can tell, while option E, which requires an ill defined new system, does not. The asterisk represents an expectation that people who vote for it come up with whatever it actually requires, yes?