Concept:Grafting is a method of vegetative propagation in which parts of two related plants are joined together to grow as one plant.
Explanation:In grafting, one plant part called the scion is joined with another plant part called the rootstock.
These two parts must be closely related so their tissues can unite and heal together.
This process does not involve fusion of gametes or rooting from two stems.
Transferring a bud from one plant to another is known as budding, not grafting.
Therefore, grafting is best described as joining two parts from related plants.
Answer:D. joining of two parts from related plants