7. (D)
Question Type: Unconditional (Orientation)
Orientation questions ask us to choose one possible complete and accurate arrangement of the elements _ in this case, email senders. If you find yourself having trouble with a question of this type, it probably means you haven’t conceptualized the game properly.
Orientation questions can be solved by looking at each constraint, one at a time, and eliminating any answer choice that violates that constraint. Since it’s very rare for more than one answer choice to violate any one constraint, you should move on to the next constraint once you’ve eliminated a choice. (It’s rare, but it does happen occasionally. So if you’re stuck on two choices with an orientation question, go back through the constraints; it’s a safe bet one of them applies twice.)
Let’s start with the first constraint: the first message is not from L. Answer (A) violates that rule, so we can cross it out.
The next constraint tells us that the first and last messages are from the same person. Answer (C) has J first and H last, so we can eliminate it.
The third constraint says we must have the HJ chunk exactly once. Answer (B) is chunkless. Eliminate (B).
The final constraint: J occurs exactly once in the first three positions. Answer (E) begins H, L, L, so we can eliminate it. That leaves us with (D), the correct answer.