The correct option is B Sowing
Vegetative propagation
Asexual reproduction is a method of producing young ones from a single parent. Vegetative propagation is a form of asexual reproduction in plants in which new plants are generated from vegetative parts of the plant body such as root, stems or leaves.
Micropropagation
Micropropagation is the technique of in vitro vegetative propagation and regeneration of plants under aseptic and controlled conditions in labs to produce a large number of plants that can be transferred to the crop field.
Budding
In budding, small buds develop and remain attached to the parent plant initially and then detach to produce a new individual.
Sowing
Sowing is a method of spreading seeds onto fields for the cultivation of plants. Seeds are produced as a result of sexual reproduction in plants which involves the fusion of gametes coming from two parents of opposite sexes.
Layering
Layering is the process of vegetative propagation in which one of the branches of the parent plant is bent and buried under the soil. This part which touches the ground produces adventitious roots and grows into a new plant after detaching from the parent plant.
Final answer
(c) Sowing