The electric potential Vat any point (x, y, z ), all in metres in space is given by $\mathrm{V} = 4{\mathrm{x}}^2$ volt. The electric field at the point (1, 0, 2) in volt/meter, is :

• A

  8 along negative X-axis

• B

  8 along positive X-axis

• C

  16 along negative X-axis

• D

  16 along positive X-axis