While providing care for a client with a second-degree left ankle sprain, the nurse raises the injured part above heart level. Which statement describes the rationale behind this nursing action?
a) Elevating the ankle reduces swelling and promotes blood circulation.
b) It helps to speed up the healing process and prevents infection.
c) Raising the ankle minimizes pain by reducing nerve pressure.
d) Elevation prevents the formation of blood clots in the injured area.