Which one of the following lists the cities in an order in which they could be used for the meetings, from the first ...

So this one there are definitely some up front deductions, my process also always entails hitting conditionals first, but is there any scenario I should build out for this? I wasted a ton of time thinking if I could, but I couldn't make a "reasonable" amount of scenarios, so I did the brute force... An approach for if I should have done scenarios on this would be very helpful, I guess the thought process more than anything on when to call it quits and head into questions.