The right answer is Asexual reproduction produces offspring that are identical to the parent.
Sexual reproduction is ensured by fertilization, that is to say by fusion of male and female gametes giving an egg (or zygote). This reproduction allows the maintenance of a genetic diversity within the populations, because it ensures the genetic mixing.
Asexual reproduction (sometimes vegetative propagation) refers to all other means of multiplication in which neither gamete nor fertilization occurs. In this case, the sex of the parents and the descendants remains identical, because only the mitosis ensures the transmission of the genetic information to the new cells. It is a form of natural cloning.