The number of words which can be formed ...

The number of words which can be formed out of letters a, b, c, d, e, f taken 3 together, each containing one vowel atleast is

A

`""^(4)P_(1).""^(4)P_(2)`

B

96

C

`""^(6)P_(3)`

D

120

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The correct Answer is:

B

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