In which national park in Florida is Fort Jefferson? A. Biscayne National Park
B. Dry Tortugas National Park
C. Everglades National Park

Dry Tortugas National Park

Explanation:

Constructed between 1845 and 1876, Fort Jefferson is a 19th-century third system coastal fortification that occupies the majority of Garden Key in the remote Dry Tortugas National Park in the Florida Keys. Fort Jefferson represents the highest achievements of nineteenth century American military architecture and civil engineering.