$11.$ A dumbbell$-$shaped object is composed by two equal masses, m$,$ connected by a rod of negligible mass and length r$.$ If $/1$ is the moment of inertia of this object with respect to an axis passing through the center of the rod and perpendicular to it and $/2$ is the moment of inertia with respect to an axis passing through one of the masses, it follows thatA$)/1=12.$B$)41>12$C$)/2>/1.$