An organization's communications "system" $\_\_\_\_\_\_\_\_.$

$1$ point

A$)$ can use a number of procedures and media that reflect its corporate culture

B$)$ can normally be learned through educational courses. College graduates are expected to have mastery of this system before they enter the workplace

C$)$ is most efficient if it is structured as a 'top$-$down,$\text{'}$ hierarchical process

D$)$ is most efficient if it is structured as a 'horizontal,$\text{'}$ democratic process