Sean's company employs about $100$ people, all of whom work in the same building. The company's structure is hierarchical; the employees consist of about $70$ billing clerks $($who process bills that need to be sent from the medical clients to their patients$),$ about $15$ nonmanagerial professionals $($in $IT,$ accounting, sales, and customer service$),$ and about $15$ managers$/$executives$.$ Which is least likely to be true about his company's communication?

Multiple Choice

For their internal communications, everyone in the company uses a friendly, informal tone.

The billing clerks do not send many communications to the executives or upper$-$level managers.

The billing clerks work in cubicles in a large room, while most of the professional and managerial staff have offices on the floor above. This layout tends to discourage upward communication from the clerks to anyone except their immediate supervisors.

There are written guidelines for many of the company's procedures.

The customer$-$service representatives tend to follow standardized scripts and procedures when responding to client calls.