I don’t disagree with the idea of just playing the top row, but then again, how do you know for certain you’ll get them all right? Especially if you have a weaker category as one of the five you’re given. If Opera or The Bible would be on that board, I’d have to be somewhat wary.
SuperMatch’s point is probably the best of those strategies; of the five, pick what you think is your strong suit and go from there.
One thing I would wonder is if they ever gave thought to giving a bonus for a diagonal line.