A is wrong. If you have F, M, U then you need to choose a second physical therapy. You need V, not W: W would kick out F. But, V requires H. That leaves no room for O, and F needs O.
B is wrong because it has F and W together.
C is wrong because if you have V then you need M, not N.
D is CORRECT and is proven by this scenario.

E is wrong because if you have V then you need M, not N.

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