Infinite number of masses, each 1 kg are placed along the x-axis \[\operatorname{at} x=\pm 1 m, \pm 2m, \pm 4m, \pm \]\[8m, \pm 16M\ldots \] the magnitude of the resultant gravitational potential in terms of gravitational constant G at the or g in \[(x=0)\] is

• A. G/2
• B. G   
• C. 2G  
• D. 4G