A plum is located at coordinates $(-1\mathrm{.}69$ m$,0,1\mathrm{.}42$ m$).$ In unit$-$vector notation, what is the torque

about the origin on the plum if that torque is due to a force F whose only component is $($a$)$ Fx $=7\mathrm{.}44$

N$,($b$)$ Fx $=-7\mathrm{.}44$ N$,($c$)$ Fz$=7\mathrm{.}44$ N$,$ and $($d$)$ Fz$=-7\mathrm{.}44$ N$?$