In 2011, piracy was an enormous problem off the coast of
a.
nigeria

Good evening Sergio,

I'm almost done helping for the night so I want to see if I can help on this question.  

In 2011, piracy along the Somalian coast was a big issue for cargo ships in that area with the rise of "Somali Pirates".  If Somalia was an option, then that would be your answer.

-Hope this helps!