Gary recently noticed that the plant he is managing is delivering only $30\%$ of its products on time. To determine the reason for the problem, he assembles various department heads and the plant supervisor to get their input on the matter. Although the ultimate responsibility is his, he has no difficulty delegating decision$-$making authority to any member of this group. This style of leadership suggests that Gary is which type of leader?

a$.$ authoritative

b$.$ autocratic

c$.$ dependent

d$.$ participative