The Kuna Tribe, Which Inhabits Islands Off the Coast of Panama

The Kuna tribe, which inhabits islands off the coast of Panama, has almost no incidence of heart disease due to ____.

A) ​the unusually large amount of cocoa they consume
B) ​the unusually small amount of red wine they consume
C) ​the unusually large amount of coffee they consume
D) ​the absence of disease-carrying mosquitoes on the islands
E) ​an allele that is unique to their tribe