Which of the Following Statements Concerning Mutations Is FALSE

Which of the following statements concerning mutations is FALSE?

A) Mutations may have favorable, unfavorable, or neutral effects.
B) In haploid organisms, the phenotype associated with a mutation is immediately exposed to the environment.
C) In diploid organisms, a mutation in one homolog may have less effect than if it occurred in both homologs.
D) Mutations provide the raw materials for evolutionary change.
E) The mutation rate in eukaryotes is about one mutant gene at a given locus per 2000 cell divisions.