When Mitchell arrives at work on Monday, there is an e-mail in his inbox that reads "All employees should attend phone training in the main conference room before using their newly installed digital phones." This message is an example of which of the following?

A.
Company policy

B.
Industry standard

C.
Departmental baseline

D.
Company guideline

Explanation:
Guidelines are recommendations or suggestions given to employees. They are not
mandates like a standard, but simply general statements that are intended to help or
assist people in performing a task.