E$14.$ Electric force on a $200$ mg charged particle in a downwardly directed electric field is $0\mathrm{.}7$ N$/$C kept is in equilibrium against gravity. The charge on the particle $($magnitude and sign$)$ is$,$

$($A$)-140\mathrm{.}0$ mC

$($B$)140\mathrm{.}0$ mC

$($C$)-1\mathrm{.}4$ mC

$($D$)+1\mathrm{.}4$ mC

$($E$)-2\mathrm{.}8$ mC

$($F$)+2\mathrm{.}8$ mC

$($G$)$ None is correct