Kevin has been working at Van Der Moor Electronics Repair for $12$ years. Over these $12$ years, he has accumulated a number of different skills; however, he is still somewhat insecure in his abilities. According to Hersey and Blanchard$$s situational model of leadership, what type of leader style would work best for Kevin?

A$.$ Telling

B$.$ Selling

C$.$ Participating

D$.$ Delegating

E$.$ Directing