An appropriate use of organizational e-mail would be to:​

A) ​build rapport with a new client or customer quickly.
B) ​reveal to a coworker that you find her or him very attractive and would like to date.
C) ​provide the duty roster for the upcoming month to a group of employees.
D) ​warn others about a coworker's frequent mistakes and recent poor job performance.

Organizational e-mails should be used for professional communication, such as sharing important information, coordinating schedules or tasks, and announcing company news. Providing the duty roster for the upcoming month to a group of employees is a good example of appropriate use of organizational e-mail. Building rapport with a new client or customer (option A) can also be an appropriate use, but personal matters (option B) and negative comments about coworkers (option D) should not be included in organizational e-mails.