Doesn't answer choice D require us to assume that incorrectly addressed mail takes longer to arrive than correctly addressed mail? I chose A over D because we have no information on how long incorrectly addressed mail takes to arrive.

I don't understand how E is functionally any different from A. Wouldn't the lack of urgency of C people make their population smaller than E's?

@Abigail van Eerden nvm answered my own question lol just took me a second

Is there a way to know what the superset and the subset is from the if...then language? For the Star Wars example, it seems logical that the Force is the superset and Jedis are a subset, but that is because of outside knowledge. For questions on which we do not have as much context, how can we tell what is what?