PT59, S1, G2, Q10 - A museum curator is arranging

[frankchen007_86]

Why answer choice (D) is correct?
coz once Hibiscus is placed in position #1, Magnolia in #3/#2，while Fence positions in #7，the set out violates the condition stated in (D) but conforms to the original conditions.
I m so confused. Can anyone shed some light?
Furthermore, is there any effective tactic to crack this kindof condition substitution Qs?
they appear intensively in PT58,G2Q12 as well.

Thanx

[ManhattanPrepLSAT1]

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