Chapter 7 - Circular Motion and Gravitation - Learning Path Questions and Exercises - Multiple Choice Questions - Page 258: 16

(d) does not depend on the object's mass.

$F_{g}=G\frac{mM}{r^{2}}=mg$ $g=G\frac{M}{r^{2}}$, where M is mass of earth and r is radius of earth, and G is constant. As a, b, c are false, (d) is the right answer, since it does not depend on the object's mass.