Answer: C. sexually and asexually.
Step-by-step explanation:
Plants are the eukaryotic organisms which can reproduce by asexual as well as sexual modes of reproduction. In asexual reproduction the plant reproduce by vegetative propagation in which a part of a plant gives the birth to numerous plantlets. In sexual reproduction the plant reproduce by fertilization of male and female gametes that are pollen and eggs to form seeds. These seeds germinate to give birth to new plants.