Which of these describes how shivering helps the body to respond to the cold? *
A(Muscle movements cause pores in the skin to absorb heat from the air that was previously lost
B(Muscle movements cause the blood to flow faster, which transports heat throughout the body
C(Muscle movements make the water level in the body increase, which increases internal temperature.
D(Muscle movements generate heat, which replaces heat lost to the environment.