Which of the following statements about asexual reproduction is NOT true?

A)Asexual reproduction occurs with only one parent.
B)Asexual reproduction is less commonly used by vertebrates.
C)Asexual reproduction can occur by budding or by division and regeneration.
D)A large number of offspring can be produced in this way in a short time.
E)Asexual reproduction produces variation that allows the species to adapt quickly to changing environmental conditions.