Choose the Most Reasonable Metric Unit for Each Blank $\mathrm{km}$ B) $\mathrm{m}$

Choose the most reasonable metric unit for each blank.
-The circus is in a town 80

A) $\mathrm{km}$
B) $\mathrm{m}$
C) $\mathrm{cm}$
D) $\mathrm{mm}$