This gives us a new rule. You should draw it. M is before J and K separately.

Now G is the only variable that can go many places. Everything else has a set order.
I’ve drawn a couple scenarios that prove A, B, C and E are wrong.
You’ll see that G doesn’t have to be beside L, so E is wrong. G doesn’t have to be first, so A is wrong.
K doesn’t have to be seventh, so B is wrong. L doesn’t have to be third, so C is wrong.

D is CORRECT. No matter what we do, H is either before or after F. Only G can go before H: that puts H in third. Otherwise H is in first.

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