某公司未按期向县统计局报送劳动情况报表，县统计局遂发出《统计报表催报单》，要求3日内补报。该公司在限期内进行了补报。该单位的行为属于（）。

A.拒绝提供统计资料

B.迟报统计资料

C.拒绝统计调查

D.未构成统计违法行为

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet.

Open Shortest Path First (OSPF) is a (1) routing algorithm that (2) work done on the OSI IS-IS intradomain routing protocol. This routing, as compared to distance-vector routing, requires (3) processing power. The (4) algorithm is used to calculate routes. OSPF routing table updates only take place when necessary, (5) at regular intervals.

4（）

A．Bellman-Ford

B．Ford-Fulkerson

C．Dijkstra

D．RIP