If you are asking me, my point is that I answered the question based on how it was put. It didn't ask anything other than what type of index (if any) would be added based on the syntax given. All I can say is that this time I saw through a question that could have easily tripped me up. It just didn't this time. Earlier this week there was a question where I completely agreed it was confusing and suggested a "explain your answer" area would be appropriate for it. Maybe for this one too?