Please choose the correct option below regarding the set covering example described in lecture $5.$

Group of answer choices

The optimal strategy is to build a hub in each one of the $12$ cities.

Boston will always be selected as a city to construct the hub.

Nashville will always be selected as a city to construct the hub.

The city with the "highest number of cities nearby $($within the $300$ miles restriction$)"$ will certainly be chosen.

None of the above.