Why does a continental crust rise above an oceanic crust when the two meet?

a they are of equal density but the continental crust moves faster.

b it is less dense.

c they are of equal density but the continental crust moves slower.

d it is denser.

weathering is the answer.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek

"it built up in the atmosphere"

i think thats it, idk, i tried looking for this exact q& a for grad. and idk if i got this question right or sorry if im wrong