The correct option is B Atlantic ocean
Mid-Atlantic Ridge is located in Atlantic Ocean. The Mid-Atlantic Ridge representing the zone of divergent or constructive plate margins is the most striking relief feature which having "S" shape extends for 14,450 kilometers from Iceland in the North and to Bouvet Island in the South. The ridge is known as Dolphin Rise to the North and Challenger Rise to the south of the Equator. It is known as Wyville Thompson Ridge between Iceland and Scotland. The ridge becomes quite extensive to the south of Greenland and Iceland and is called Telegraphic Plateu because first cabbles were laid down in this area.