The static model for describing a team as something where people work closely together to achieve a common goal is no longer universal. Why not?

a$.$ As organizations become more complex, it is difficult to define one common goal.

b$.$ Globalization and technological advances have created new approaches to team organization.

c$.$ Organizations have less of a need to direct personal interactions.

d$.$ Once a team is set, it has become more difficult to change their goals.