Certain Proteins Act as Buffers in the Blood

Certain proteins act as buffers in the blood.In this role they are responsible for:​

A) providing immunity from foreign substances that invade the body.
B) making sure that sodium is transported outside the cells.
C) ​ensuring that too much fluid in the cells doesn't cause edema.
D) ​picking up and releasing hydrogens in the blood to balance its pH.
E) ​ensuring that blood glucose is maintained within a specific range.