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Q 1565880765.     If `(2, -1, 2)` and `(K, 3, 5)` are the triads of direction ratios of two lines and the angle between them is `45^{\circ}`, then a value of `K` is

EAMCET 2015
A

`2`

B

`3`

C

`4`

D

`6`

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