Let $f(x+y)=f(x)f(y)$ for all $x, y$ where $f(0) \neq 0$. If $f(5) = 2$ and $f'(0) = 3$,then $f'(5)$ is equal to

  • A
    $6$
  • B
    $0$
  • C
    $1$
  • D
    None of these

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