If the vectors AB = -3i + 4k and AC = 5i...

If the vectors AB = -3i + 4k and AC = 5i - 2j + 4k are the sides of a triangle ABC, then the length of the median through A is

A

`sqrt(14)`

B

`sqrt(18)`

C

`sqrt(25)`

D

`sqrt(29)`

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The correct Answer is:

B

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