which material rises from cracks in oceanic crust?\ndense crust\nmolten rock\ncontinental crust\npillow…

Brief Explanations:

At mid - ocean ridges, where there are cracks in the oceanic crust, magma (molten rock) rises from the mantle. Dense crust and continental crust do not rise from these cracks. Pillow - shaped rocks are formed when the molten rock cools rapidly upon contact with seawater, but they are not the material that rises from the cracks.

Answer:

molten rock