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If 5 letters are placed in 5 addressed e...

If 5 letters are placed in 5 addressed envelopes and A,B,C defines the events that Exactly one letter is placed wrongly, atleast one placed wrongly, all are placed wrongly. Then the descending order of their probabilities is

A

`p(A),p(B),p(C )`

B

`p(B),p(C ),p(A)`

C

`p(C ),p(B),p(A)`

D

`p(A),p(C ),p(B)`

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The correct Answer is:
B
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