The number of pairs of the solution having the same value of the osmotic pressure from the following is
(Assume 100% ionization)
A. 0.500 M C$$_2$$H$$_5$$OH(aq) and 0.25 M KBr(aq)
B. 0.100 M K$$_4$$[Fe(CN)$$_6$$](aq) and 0.100 M FeSO$$_4$$(NH$$_4$$)$$_2$$SO$$_4$$(aq)
C. 0.05 M K$$_4$$[Fe(CN)$$_6$$](aq) and 0.25 M NaCl(aq)
D. 0.15 M NaCl(aq) and 0.1 M BaCl$$_2$$(aq)
E. 0.02 M KCl.MgCl$$_2$$.6H$$_2$$O(aq) and 0.05 M KCl(aq)