0<=x<90 or 0<x<=90, none of which matters in real life as you're not flying that accurately anyway so who cares.
Until they have successfully passed the exam, everyone cares, regardless of how stupid the question is you still have to get it right.
My opinion in this case is that it matters not a jot which way the aircraft is pointing. It could be a helicopter flying backwards, so drift is irrelevant. It is which direction (true) it is traveling, I think 090T at 4deg var. Although I stand to be corrected.