The correct option is C Micropropagation
Plant tissue culture, more technically known as micropropagation, can be broadly defined as a collection of methods used to grow large numbers of plant cells, in vitro, in an aseptic and closely controlled environment. This technique is effective because almost all plant cells are totipotent – each cell possesses the genetic information and cellular machinery necessary to generate an entire organism. Micropropagation, therefore, can be used to produce a large number of plants that are genetically identical to a parent plant, as well as to one another.