What Is the Rationale for Providing Warm Compresses and Blankets

What is the rationale for providing warm compresses and blankets for a patient with sickle cell crisis?

A) Sickle cell crisis causes shivering and discomfort.
B) Heat prevents vasoconstriction and impaired circulation.
C) Heat helps prevent the cells from becoming sickled.
D) Heat speeds production of new healthy red blood cells.