In a certain region of space, the gravitational field is given by $-k/r$ , where $r$ is the distance and $k$ is a constant. If the gravitational potential at $r = r_0$ be $V_0$ , then what is the expression for the gravitational potential $(V)$ ?

  • A

    $k\,log\,(r/r_0)$

  • B

    $k\,log\,(r_0/r)$

  • C

    $V_0\, +\, k\, log\, (r/r_0)$

  • D

    $V_0\, +\, k\, log\, (r_0/r)$

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