In the context of mechanical equilibrium, which of the following conditions must be satisfied for an object to be in a state of static equilibrium?
A) The net force acting on the object is zero, but the net torque is not zero.
B) The net torque acting on the object is zero, but the net force is not zero.
C) Both the net force and the net torque acting on the object are zero.
D) The object must be accelerating, and the net force is zero.