Let A={u,v,w,x} .A bijective function f:...

Let `A={u,v,w,x}` .A bijective function `f:A rarr A` is chosen at random, then the probability that `f(u)!=u,f(v)!=v,f(w)!=w` and `f(x)!=x` is
1) `(3)/(8)`
2) `(11)/(24)`
3) `(1)/(64)`
4) `(7)/(24)`

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