The nurse-manager of a hospital unit holds monthly staff meetings. During these meetings, she maintains control over the meeting and agenda, resists consensus decision making, and uses discipline and coercion to elicit desired behavior from staff. This manager uses what type of leadership style

A. Autocratic.
B. Democratic.
C. Participative.
D. Laissez-fair

关于违反治安管理行为的概念表述正确的是( )。

A．是扰乱公共秩序，妨害公共安全的行为

B．是具有社会危害性的行为

C．是尚不够刑事处罚的行为

D．是应当给予治安管理处罚的行为