单项选择题

A.50g/LC6H12O溶液、50g/LC12H12O11溶液
B.1mol/LC6H12O溶液、1mol/LC12H12O11溶液
C.0.5mol/LC6H12O溶液、0.5mol/LNaCl溶液
D.0.5mol/LNaCl溶液、0.5mol/LCaCl2溶液
E.0.5mol/LNaCl溶液、0.3mol/LCaCl2溶液