A closed system limits exchange with the environment and seeks to operate as a self-contained unit

An example of a realistic goal statement for improving your grades in school is

a. "I will read from my textbooks for a certain amount of time every night." b. "I will decrease the number of hours spent watching TV every night and use the time for study and assignments." c. "I will break every assignment into manageable steps to be completed well advance of the due date." d. "I will ask the instructor questions when I do not understand something." e. All of the above

When should you use a flowchart as a presentation aid?

What will be an ideal response?