ACCorDing to thE pAssAgE, BAthing rEmovEs Dry skin FlAkEs BECAusE ______.
A．thE soAp DrAw it oFF thE BoDy
B．thE skin hyDrAtEs
C．thE CirCulAtion oF BlooD ExpAnDs skin pArtiClEs
D．thE ChAngE in BlooD prEssurE rElEAsEs thE Film