Compared with sexual reproduction of plants, vegetative reproduction of plants has the following advantages: (a) it can maintain the excellent characteristics of parents and improve the vitality of future generations; And (b) it can be synthesized twice. Asexual reproduction refers to a reproductive mode in which parents directly produce offspring without the combination of bisexual germ cells. The advantage is that the propagation speed is fast, which is beneficial to the maintenance of parental traits. The disadvantage is that the genetic characteristics of offspring and mothers have not changed after all, and the variability is reduced, so the ability to adapt to environmental changes is reduced. Asexual reproduction mainly includes: 1, fission reproduction, also known as fission, which is a reproductive mode in which organisms split from a mother to new offspring. It is common in single cells. 2. Bud propagation, also known as bud propagation, is a propagation mode in which the mother gives birth to a bud in a certain part, and the bud gradually grows into an individual like the mother, and falls off from the mother to become a complete new individual. 3. Spore reproduction, some organisms can produce a cell when they grow up, and a new individual can be directly formed without two two combination. This reproduction is called spore reproduction, which is common in lower plants and fungi. 4. The vegetative propagation of new individuals from vegetative organs (roots, leaves and stems) of plants is called vegetative propagation.

Sexual reproduction refers to the reproductive mode in which bisexual cells combine to form a fertilized egg, and then the fertilized egg develops into a new individual. Sexual reproduction can make offspring have greater variation, make offspring produce new characters, have stronger vitality, and be more conducive to adapting to the environment and the reproduction of human race.

So choose C.