Change the Given Quantity to the Indicated Unit $30 \mathrm{~km} \approx \ldots \mathrm{mi}$

Multiple Choice

Change the given quantity to the indicated unit. Round the answer to the nearest tenth of the unit if necessary.
- $30 \mathrm{~km} \approx \ldots \mathrm{mi}$

A) $48.3 \mathrm{mi}$
B) $18.8 \mathrm{mi}$
C) $28.4 \mathrm{mi}$
D) $31.8 \mathrm{mi}$