He is the most brilliant pianist ______ I have ever met.

A．To illustrate the important role and function of the assignment desk.
B．To give us a brief introduction of their working conditions.
C．To exemplify the cooperation of all sections in the company.
D．To emphasize the mission of the correspondents.

A．more vivid pictures and details are provided
B．changing the style to cater for the audience's appetite
C．more live coverage to replace the linguistic explanation
D．interval shifts of the materials of the coverage