All of the following statements concerning chick cleavage are true except.

All of the following statements concerning chick cleavage are true except.
a. cleavage is meroblastic
b. cleavage is completed before the egg is layed
c. the blastoderm is disk shaped due to the yolk pushing up against the embryo
d. the epiblast cells contribute exclusively to the development of the embryo
e. the hypoblast cells contribute exclusively to the development of extraembryonic membranes.

A for sure is true, meroblastic = unequal divisions due to yolk.
B = i have no idea
C = i dont think this is true, because the disk of cells lie ON TOP of the yolk, they arent squished...(at least i dont think)
D = true, epiblast makes germ layers
e = true

so is it C???