If a Galaxy Is Moving Away from Us At $1.0 \%$

Multiple Choice

If a galaxy is moving away from us at $1.0 \%$ of the speed of light, how far away is it from us if $H = 20 \frac { \mathrm { km } / \mathrm { s } } { \mathrm { Mly } } ? \left( c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$

A) 150 thousand ly
B) 150 billion ly
C) 200 million ly
D) 150 million ly
E) $150 \mathrm { ly }$