There is no component of force acting along the direction of motion of the satellite.
It is given that, a satellite in a circular orbit travel at a constant speed. The acceleration of an object is equal to the rate of change of velocity. At a particular point, the acceleration of the satellite will is equal to 0. We know that force is given by :
F = m a
If a is 0, then the force acting on the satellite is zero. So, there is no component of force acting along the direction of motion of the satellite. Hence, the correct option is (b).