One charge $+Q$ is located at the origin $(0,0),$ and a second charge $+4Q$ is placed at the point $(d,0)$ on the $x-$axis. What is the electrostatic force on the first charge due to the second charge, and what should be its direction and magnitude? $()$

A$.-x-$axis, $k\frac{Q^2}{4}{c}^R$

B$.+x-$axis, $4k\frac{Q^2}{d^R}$

C$.-x-$axis, $4k\frac{Q^2}{d^R}$

D$.-x-$axis, $0$