This Map Shows the Incidence of Syphilis in the United

This map shows the incidence of syphilis in the United States in 2012.Based on the map shown,which of the following statements is true?

A) Efforts to prevent syphilis in the southern states failed to prevent an increase in the number of new cases in 2012.
B) No individuals in Montana were infected with syphilis in 2012.
C) The number of new cases of syphilis was higher in Texas than it was in North Dakota in 2012.
D) The total number of active cases of syphilis in 2012 was highest in the southern states.