A body A of mass m is moving in a circular orbit of radius R about a planet. Another body B of mass 2m collides with A with a velocity which is half (2v) the instantaneous velocity v of A. The collision is completely inelastic. Then, the combined body: [Main 9 Jan. 2020 I]
a. continues to move in a circular orbit
b. Escapes from the Planet's Gravitational field
c. Falls vertically downwards towards the planet
d. starts moving in an elliptical orbit around the planet