How Far Is a Galaxy from Earth If It Is $\times$

Multiple Choice

How far is a galaxy from Earth if it is receding from Earth at a speed of 0.1c?

A) 3.0 $\times$ 10²⁰ m
B) 1.0 $\times$ 10²² m
C) 1.2 $\times$ 10²⁵ m
D) 3.0 $\times$ 10²⁸ m
E) 1.0 $\times$ 10³⁰ m