Gary Is a Junior Member of the Human Resource Team

Gary is a junior member of the human resource team at Big Mills Inc. After his first month at work, he prepares a report for his manager that details his ideas about how a worker's productivity and efficiency can be increased. Gary's job does not require him to prepare any reports, yet he has taken the initiative to create such a report. In this scenario, which of the following types of informative reports has Gary prepared?

A) A memo report
B) A progress report
C) A periodic report
D) An unsolicited report