On this map, identify which letter is over a mid-ocean ridge

Mid Ocean ridges occur where oceanic plates are pulled apart by convection currents being generated in the mantle. The most famous mid ocean ridge on the planet is the mid-Atlantic ridge where the north and south American plates are pulling away from the African and Eurasian plates. The ridge extends from as far north as Iceland travelling south. 

100% tortilla. it is the only possible answer