City X Y

Covington $9\mathrm{.}23\mathrm{.}5$

Donaldsonville $7\mathrm{.}32\mathrm{.}5$

Houma $7\mathrm{.}81\mathrm{.}4$

Monroe $5\mathrm{.}08\mathrm{.}4$

Natchitoches $2\mathrm{.}86\mathrm{.}5$

New Iberia $5\mathrm{.}52\mathrm{.}4$

Opelousas $5\mathrm{.}03\mathrm{.}6$

Ruston $3\mathrm{.}88\mathrm{.}5$

The$$ center$-$of$-$gravity approach minimizes the distance traveled assuming straight lines. This approach ignores geographical features that would tend to violate the straight line constraint such as $($select all that$$ apply$)$:

A$.$

$$Non$-$straight roads

B$.$

Rivers

C$.$

Trips

D$.$

Bridges