Which one of the following statements is false:

• A. The presence of ingested erythrocytes is seen only in Entamoeba histolytica
• B. Young adult male of low socioeconomic status are most commonly affected by invasive amoebiasis
• C. A low iron content in the diet predisposes to invasive amoebiasis
• D. The pathogenic and non-pathogenic strains of E.histolytica can be differentiated by the electrophoretic study of zymodemes