Planet Z-34 Has a Mass Equal to 1/3 That of Earth,a

Multiple Choice

Planet Z-34 has a mass equal to 1/3 that of Earth,a radius equal to 1/3 that of Earth,and an axial spin rate 1/2 that of Earth.With g representing,as usual,the acceleration due to gravity on the surface of Earth,the acceleration due to gravity on the surface of Z-34 is

A) g/3.
B) 3g.
C) 6g.
D) g/9.
E) 9g.