实验室制取氯气除了用外，还可以有以下途径。若制取等质量的氯气，消耗浓盐酸最多的是 [ ]

A.8HCl+K₂Cr₂O₇ = 2KCl+Cr₂O₃+4H₂O+3Cl₂↑

B.16HCl+2KMnO₄ = 2MnCl₂+8H₂O+2KCl+5Cl₂↑

C.Ca(ClO)₂+4HCl = CaCl₂+2Cl₂↑+2H₂O

D.6HCl+KClO₃ = KCl+3H₂O+3Cl₂↑