Which of the following is a difference between special$-$purpose teams and self$-$directed work teams?

a$.$ Unlike self$-$directed work teams, special$-$purpose teams are formed to execute a specific task and do not require diverse perspectives.

b$.$ Unlike special$-$purpose teams, self$-$directed work teams are short lived and do not need particularly to fit the underlying culture of the organization.

c$.$ Unlike self$-$directed work teams, special$-$purpose teams consist of managers from the same hierarchal level.

d$.$ Unlike special$-$purpose teams, self$-$directed work teams use regular internal decision$-$making processes.