Option (B) is correct because the Big Trunk Route runs through the North Atlantic Ocean. One fourth of the world’s foreign trade moves on this route. It is busiest sea route in the world.

Option (A) is not correct because the Mediterranean –Indian Ocean route serves more countries and people than any other route.

Option (C) is not correct because the South Atlantic Ocean has the Southern Atlantic Sea route which connects West European and West African countries with Brazil, Argentina and Uruguay in South America.

Option (D) is not correct because the North Pacific Ocean route links the ports on the west –coast of North America with those of Asia.