The President of a Company Changes the Organization's Culture

The president of a company changes the organization's culture. He posts a new vision for higher customer satisfaction clearly for all employees to see,rewards the development of customer relationships,and gives bonuses for winning back lost customers. What did the president address directly to effect the change in culture?

A) the subconscious codes of conduct employees operate within  
B) employee assumptions and beliefs about the organization  
C) visible artifacts and the behaviour of employees toward customers  
D) the company's mission