Which of the Following Is NOT a Strategy Vegetarians Can

Which of the following is NOT a strategy vegetarians can use to achieve adequate intake of nutrients of concern for vegetarians?

A) eating a source of vitamin C alongside beans to achieve adequate iron intake
B) consuming a fortified breakfast cereal to achieve adequate riboflavin intake
C) consuming walnuts and flaxseed to achieve adequate omega-3 fatty acid intake
D) consuming vitamin D-fortified soy milk
E) All of these are correct.