If potential (in volts) in a region is expressed as V (x, y, z)=6 x y-y+2 y z, the electric field (in N / C ) at point (1,1,0) is:

If potential (in volts) in a region is expressed as $\displaystyle \mathrm{V}(x, y, z)=6 x y-y+2 y z$, the electric field (in $\displaystyle \mathrm{N} / \mathrm{C}$) at point $\displaystyle (1,1,0)$ is :