_______ the classroom, the teacher found all the parents already______ there. [ ]

A. Entered; seated          

B. Entering; seating   

C. Entered; seating          

D. Entering; seated

申领烟草专卖生产企业许可证，必须报省级烟草专卖行政主管部门审查，由国务院烟草专卖行政主管部门审批发证。