The passage suggests that which of the following is a function likely to be performed by an oligosaccharin？

A. To stimulate a particular plant cell to become part of a plant’s root system
B. To stimulate the walls of a particular cell to produce other oligosaccharins
C. To activate enzymes that release specific chemical messengers from plant cell walls
D. To duplicate the gene complement in a particular plant cell
E. To produce multiple effects on a particular subsystem of plant cells