1) 1-0-0-1? 2) The correct answer is (E), $0. 3) To have a fixed, upside target regarding overall profitability is bad because you're focused on it instead of trading in the present moment.
I think E is the correct answer as well. Courses with Easylanguage code and a profitable system included with it are hard to come by, and most choose to market their strategies based on books they write for courses, then cross-sell the strategy when it is only the profitability of the strategy that matters.