Which of These Statements INCORRECTLY Describes an Example of Pleiotropy

Which of these statements INCORRECTLY describes an example of pleiotropy?

A) A mutation in a Cl-transport protein causes infertility and excessive mucus in the lungs.
B) A mutation in a gene for microtubule formation causes a defect in sperm motility and cilia movement in the respiratory tract.
C) A mutation in a lipid metabolism gene leads to a buildup of lipids in cells, causing blindness and paralysis.
D) A mutation in the phenylalanine hydroxylase gene can cause mental retardation and loss of motor skills.
E) He was able to correlate the expression of white eyes to the inheritance of an X chromosome because only F2 males had white eyes and the trait is recessive.