The angle made by the vector $\left( {\hat i\,\, + \;\,\hat j} \right)$ with $x-$ axis and $y$ axis is

  • A

    $45^o, 60^o$

  • B

    $60^o, 60^o$

  • C

    $45^o, 45^o$

  • D

    $60^o, 45^o$

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