If We Neglect the Effects of Air Resistance,the Impact Speed $\times$

Multiple Choice

If we neglect the effects of air resistance,the impact speed of a body of mass m released from rest at an altitude of 2 $\times$ 10⁸ m above the surface of Earth (m_e = 5.99 $\times$ 10²⁴ kg,r_e = 6.37 $\times$ 10⁶ m) is

A) ~3.92 $\times$ 10⁹ m/s
B) ~6.26 $\times$ 10⁴ m/s
C) ~1.10 $\times$ 10⁴ m/s
D) ~1.21 $\times$ 10⁸ m/s
E) None of these is correct.