Total number of ways = 7!*2!.
There are 10person among whom 2are brother. The total no.of ways in which these persons can be seated around a round table so that exactly 1person sit between the brothers, is equal to?

[A] 7!*3!
[B] 7!*2!
[C] 6!*3!
[D] 5!*2!
[E] 8!*3!