Ocean lithosphere is lighter than continental lithosphere

if this is is a True or False question I think it would be (False). Because the continental crust is lighter than the oceanic crust, and the continental crust cannot subduct.

False.

Explanation:

Ocean lithosphere is about 60km thick and very dense, whereas continental lithosphere is about 120km and less dense. That is why when they collide, ocean plates subduct under continental ones.

c. electrical charges of ionic bonds.