Three identical $100$ g$-$objects are placed in the vertices of an equilateral triangle whose side is a$=10$ cm$.$ The net force which acts on each $100$ g$-$object is most likely equal to

Group of answer choices

$6\mathrm{.}67$x$10-11$N

$9\mathrm{.}33$x$10-11$N

$1\mathrm{.}15$x$10-10$N

$5\mathrm{.}75$x$10-11$N