Stock and scion are involved in the artificial propagation method known as :
A. tissue culture
B. layering
C. grafting
D. cuttings
Grafting is a method of artificial propagation in which the cut stems of two different plants (one with roots and other without roots) are joined together in such a way that the stems join and grow as a single plant. The cut stem of a plant having roots (and fixed in soil) is called stock and the cut stem of another plant (without roots) is called scion.