A Planet Orbiting the Sun Has Speed V = √(GM/d)

Multiple Choice

A planet orbiting the Sun has speed v = √(GM/d) . Escape speed from the Sun is v = √v(2GM/d) , where G is the gravitational constant, M is Sun's mass, and d is the distance from the Sun. Noting that this tells us that escape speed is √2 times orbital speed, which planet would fly out of the solar system by a 1.5 increase in orbital speed?

A) Mercury.
B) Venus.
C) Earth.
D) all of the above
E) none of the above