The level of information in the passage above is suited to the needs of all of the following people except ______.
A．an official of a research foundation who identifies research projects for potential funding
B．a state official whose position requires her to alert farmers about possible innovations in fanning
C．a researcher whose job is to identify potentially profitable areas for research and product development
D．a botanist conducting experiments to determine the relationship between degree of mycorrhizal infection and expected uptake of phosphate