Answer:
Correct answer is across the Atlantic Ocean
.
Explanation:
First option is correct because seven locations are shown that went across Atlantic. Of course, this refers to slave trade that led from Western Africa to America.
Second and last options are not correct as only three locations are leading towards Southwestern Asia, which of course leads across Indian Ocean.
Third option is also not correct as Europe is not mentioned except Spain.
I'm pretty sure the answer is Britain
