A bag contains 5 white and 3 black balls...

A bag contains 5 white and 3 black balls and 4 balls are successively drawn out and not replaced. The probability that they are alternately of different colours is -

A

`(1)/(7)`

B

`(3)/(7)`

C

`(13)/(56)`

D

`(1)/(196)`

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The correct Answer is:

A

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