Which of the Following Statements Are True of Venous Return

Multiple Choice

Which of the following statements are true of venous return (Select all that apply) ?

A) Starling's law of the heart depends upon venous return.
B) Venous return is the volume of blood the veins return to the heart.
C) Ordinary walking increases venous return because it increases the skeletal muscle pump.
D) Breathing faster and deeper will increase venous return.