Which of the Following Is NOT an Example of Variation

Multiple Choice

Which of the following is NOT an example of variation?

A) both monocotyledons and dicotyledons perform the dark reaction
B) giraffes have not been seen in an albino form
C) a child does not have her mother's hair color
D) cats can have long or short fur
E) lobsters can come in many colors including blue,read,and brown