Which of the Following Is NOT a Way in Which

Which of the following is NOT a way in which genes and memes differ?

A) Genes can be precisely identified,whereas memes cannot.
B) Genes can replicate horizontally and vertically,whereas memes can only replicate vertically.
C) Genes copy with high fidelity,whereas memes might not.
D) Genes are transmitted much more slowly than memes.
E) Nonadaptive memes can become common,whereas nonadaptive genes cannot become common.