An electrical charge $\;4\times10^{-8} C\;$ is placed at the point $\;(2 ,3 ,5)\;.$ At the point $\;(5 , 3, 1) m \;$ electric field vector will be

Question

$(a)\;\large\frac{(216 \hat{i}-288 \hat{k})}{25}\qquad(b)\;\large\frac{(216 \hat{i}+288 \hat{k})}{25}\qquad(c)\;\large\frac{(-216 \hat{i}+288 \hat{k})}{25}\qquad(d)\;\large\frac{(-216 \hat{i}-288 \hat{k})}{25}$