Which of the Following Is an Example of a Group

Which of the following is an example of a group that has the freedom to develop its own goals?

A) a gathering of neighbors meeting to discuss ways to reduce crime in their neighborhood
B) a group of students assigned a topic for a class project
C) a group of employees asked to develop recommendations for safer storage of hazardous chemicals
D) a group of students asked to serve on a task force about instituting a tobacco ban on campus
E) a group of coworkers meets to brainstorm ideas for the next public relations campaign for a client