Genetic Variation Leads to Genetic Diversity in Populations and Is

Genetic variation leads to genetic diversity in populations and is the raw material for evolution. Which of the following statements best represents the connection between reproduction and evolution?

A) Plants that use sexual reproduction are rare since this type of reproduction in plants does not contribute to genetic diversity and evolutionary pressures select against them.
B) In order for evolutionary pressures to affect sexually reproducing organisms, mutations must occur in the zygote after fertilization.
C) Since prokaryotic organisms reproduce asexually, they have no mechanism to add genetic diversity for evolutionary pressures to act upon.
D) Sexual reproduction increases genetic variation because random mutations can be shuffled between organisms.