Which Item Below Is the Best Example of an Organizational

Which item below is the best example of an organizational ritual or routine?

A) The group comes to accept the new chief executive officer (CEO) as the boss of the organization.
B) The members of the group all use the same jargon when describing their product.
C) The organization has a weekly casual lunch get-together called "soup Wednesday."
D) The members of the group decide that e-mail is the best way for them to communicate.