Before the Discovery of Pluto's Moon,Charon,Pluto's Mass Was Estimated to Be

Before the discovery of Pluto's moon,Charon,Pluto's mass was estimated to be around 6 * 10²² kg.If Charon orbits Pluto with a period of 153 hours at a distance of 1.75 * 10⁷m estimate the mass of Pluto.

A) 3.15 * 10²¹ kg
B) 3.18 * 10²² kg
C) 1.04 * 10²² kg
D) 1.14 * 10²² kg
E) 6.31 * 10²² kg