Alex was hired as the sales director of a small company that participated in activities in international markets. He worked very hard preparing proposals regarding new clients, potential markets, new products, price structure, and other important issues. However, all his proposals were rejected by other managers, who said that those tasks were not within the scope of Alex's work. He feels disappointed and frustrated, and his performance has decreased significantly. This situation is an example of which of the following

Role definition

Information silo

Role ambiguity

Role conflict