A technique of micropropagation is

• somatic hybridization

• somatic embryogenesis

• protoplast fusion

• embryo rescue

B.

somatic embryogenesis

Somatic embryogenesis is technique of micropropagation. Micropropagation is the growing of plants from meristematic tissue or somatic cells of plants on suitable nutrient media under controlled conditions. The technique used to generate new plantlets by micropropagation. 
(i) Organogenesis is method of micropropagation that involves tissue regernation of adventitions organs or axillary buds from explants. 
(ii) Somatic embroygenesis is development of embryos without formation of zygote (i.e. development from somatic cells)