Which One of the Following Is a Feature of Serving

Which one of the following is a feature of serving size information on food labels?

A) Serving sizes for solid foods are expressed in only millilitres.
B) Small bags of individually wrapped food items must contain only one serving.
C) Serving sizes on food labels are not necessarily the same as those of Canada's Food Guide.
D) For a given product, the serving size is not the same, no matter how large the package.