Two forces `F_1= 3 hati - 4 hatj and F_2 = 2 hati - 3 hatj` are acting upon a body of mass `2 kg`. Find the force `F_3`, which when acts on the body will make it stable.
Options:
(a) `5hati + 7hatj`
(b) `-5hati- 7hatj`
(c) `-5hati + 7hatj`
(d) `5hati -7hatj`