when satellite revolve around the earth we can say that any other effect on satellite is negligible and the only force on satellite is due to gravitational force of the earth.
Now since satellite is revolving around the earth in circular orbit
So we can say that net force on the satellite is providing it centripetal force
So this force is towards the center of the path and it must be given as

now here the velocity of the satellite is always along the tangent to the path and it must be constant always
so here the correct option must be
D. Change the Fg = Fc vector so it is perpendicular to the v vector.