If the forces acting on an object are balanced, then

In the question it is given that the forces acting on a body are balanced which signifies that the net force on the body is zero. That is there is no net force acting on the body. Option (A) says that the body will be accelerated but we know that for acceleration a net force is required. Hence this option is not right. Option (B) says that the object will be in motion which is also wrong because without a net external force there is no motion of the body at all. Option (C) states that the body will be at rest and this is the right option because if all the forces are cancelling out each other there will be no net force which will ultimately results in the stationary/rest position of the object. Option (D) can also be true if the forces applied are enormous. But it is not specified in the question that the forces are that much huge. Hence, we will conclude that this is also not right option.