A woman has 11 close friends. Number of ...

A woman has 11 close friends. Number of ways in which she can invite 5 of them to dinner if two particular friends of them are not on speaking terms and will not attend together is

`""^(11)C_(5)-""^(9)C_(3)`

`""^(9)C_(5)-2""^(9)C_(4)`

`3""^(9)C_(4)`

`378`

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The correct Answer is:

A, B, C, D

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