All of the Following Are Associated with Observable Artifacts,except

All of the following are associated with observable artifacts,except?

A) They supply the signals that employees interpret to gauge how they should act during the workday.
B) They can range from published documents,such as a company's vision or mission statement,to verbal statements made to employees by executives and managers.
C) They supply the primary means of transmitting an organization's culture to its workforce.
D) It is difficult to overestimate their importance because they help show current and potential employees what the organization is all about.
E) They are of six major types: symbols,physical structures,language,stories,rituals,and ceremonies.