Which countries border central america to the north and south

Explanation:

Central America is bordered by Mexico to the north, Colombia to the southeast, the Caribbean Sea to the east, and the Pacific Ocean to the west. Central America consists of seven countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, and Panama.

answer; in the disk but not the halo;

a and b because with the other three, they simplify to something else.