Which statement best describes the function of albumins?

A) They transport lipids, playing a role in clotting and defending the body against foreign substances.
B) They aid in the structural form of the erythrocyte.
C) They provide the nutrients needed to replicate erythrocytes.
D) They primarily affect the movement of fluid into capillaries by creating an osmotic gradient.
E) They are the key substance in the formation of blood clots.