The electric potential V at any point \[(x,y,z),\] all in metres in space is given by \[V=4{{x}^{2}}\] volt. The electric field at the point \[(1,0,2)\] in volt/metre is [AIPMT (M) 2011]

• A. 8 along positive .X-axis
• B. 16 along negative X-axis
• C. 16 along positive X-axis
• D. 8 along negative X-axis