Q22

[PinsyuanW243]

I figure out that
O select M (not select)
N select -->J select--->M(not select) , so M not select N select
why ans (D) is wrong.

I can figure out K must be selected, but I think N must also be selected
Please kindly assist

[ohthatpatrick]

If O is in and first, then M is out. Also, J is out, since it's impossible for J to be earlier than O.

IN: O _ _ _ _ _
OUT: M J _ _

If J is out, then N is also out.

IN: O _ _ _ _ _
OUT: M J N _

Finally, the 3rd rule forces either X or ZP to be out. Since we don't have room for Z and P to be out, we'll have to put X out, which brings everyone else in.

IN: O (H, K, P, Y, Z)
OUT: M J N X

So (A) is the answer. Hope this helps.