Which Is 0 $\frac { 9 } { 5,000 }$ B) $\frac { 18 } { 1,000 }$

Which is 0.18% as a fraction in lowest terms?

A) $\frac { 9 } { 5,000 }$
B) $\frac { 18 } { 1,000 }$
C) $\frac { 9 } { 500 }$
D) $\frac { 18 } { 100 }$