An object is gradually moving away from the focal point of a concave mirror along the axis of the mirror. The graphical representation of the magnitude of linear magnification $\left(\mathrm{m}\right)$ versus distance of the object from the mirror $\left(\mathrm{x}\right)$ is correctly given by
(Graphs are drawn schematically and are not to scale)

• A

  
• B

  
• Correct answer
  C

  
• D

  

Hence, the correct answer is option: 'C'.