The Chalazae at the Top and Bottom of the Egg

Multiple Choice

The chalazae at the top and bottom of the egg

A) anchor the yolk and secure it to its vitelline membrane so that the yolk stays centered in the middle of the egg.
B) account for almost three-fifths (58 percent) of an egg's weight.
C) are made up largely of water and carbohydrate.
D) appear darker if the egg has been fertilized.