According to Hersey-Blanchard's Model of Situational Leadership,as a Group Matures,leaders

According to Hersey-Blanchard's Model of Situational Leadership,as a group matures,leaders move through four leadership styles.Which of the following is the order in which these styles usually occur?

A) tell,sell,participate,delegate
B) participate,delegate,tell,sell
C) sell,participate,tell,delegate
D) delegate,participate,sell,tell
E) tell,delegate,sell,participate