Fifteen persons, among whom are A and B,...

Fifteen persons, among whom are A and B, sit down at random on a round table. The probability that there are 4 persons between A and B, is

A

`(9 !)/(14 !)`

B

`(10 !)/(14 !)`

C

`(9 !)/(15 !)`

D

None of these

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The correct Answer is:

D

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