In front of the terminal and now serving as a traffic roundabout is the Corsair Obelisk (Obelisco a los Corsarios) believed to be the world's only monument in praise of privateers .

Does it follow that "The Corsair Obelisk, the world's only monument that praises privateers, was built in the 17th century."?
OPT:
[I] yes
[II] it is not possible to tell
[III] no
[II]