Respuesta :
a. in Atlanta, Georgia; Boston, Massachusetts; and Phoenix, Arizona.
This is correct because each city and state need a comma between them, according to the rules of listing geographical places. Because it is a list, the semi-colon goes between each set (which means it comes after each state).
This is correct because each city and state need a comma between them, according to the rules of listing geographical places. Because it is a list, the semi-colon goes between each set (which means it comes after each state).