Which of the Following Is Not an Advantage of Nonparametric

Which of the following is not an advantage of nonparametric methods over parametric methods?

A) They can be used to test population parameters when the variable is not normally distributed.
B) They can be used when the data are nominal or ordinal.
C) They can be used to test hypotheses that do not involve population parameters.
D) They can use smaller sample sizes to give the same amount of information as their parametric counterparts.