Nance and Onawa must be kept apart. That means N has to go in S. Why? Look what happens if we put them in R.
O goes in R! So Ns, Or is how we set this up.
(Just start from Or on the top diagram and move right, and start from Ns on the lower diagram and move right)
So what can we deduce? Ns just leads to Lr, which we knew already. Or leads to Js and Kr.
We can see that P must be in S. If P were in R, then O would be in S.
So: R = L, K, O
S = P, N, J,
This answers our question; J must be at S. A is CORRECT.
Local rule questions are that simple. Draw the local rule, make deductions, check if those deductions give you the right answer.
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