Identify the Following Statement as True or False and Choose

Identify the following statement as true or false and choose the correct explanation: "For solutions requiring the same external pressure to cause reverse osmosis at the same temperature, the molarity of a sodium chloride solution will always be less than the molarity of a calcium chloride solution."

A) True, because the molar mass of sodium chloride is smaller.
B) True, because the van 't Hoff factor is smaller for sodium chloride.
C) False, because the van 't Hoff factor is smaller for sodium chloride.
D) False, because the van 't Hoff factor is larger for sodium chloride.
E) True, because the van 't Hoff factor is larger for sodium chloride.