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A body of displaced from position (hati+...

A body of displaced from position `(hati+hatj+hatk)` m to position `(4hati+5hatj+6hatk)` m under the action of force `(5hati+4hatj-3hatk)` N. The angle between the force and displcement vector is

A

`cos^-1(frac{8}{25})`

B

`sin^-1(frac{8}{25})`

C

`cos^-1(frac{11}{25})`

D

`cos^-1(frac{3}{25})`

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The correct Answer is:
a
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