Raising_______retirement age in progressive steps is in_____line with China’s labor market realities and should be prioritized, an official said Tuesday.

Raising_______retirementageinprogressivestepsisin_____linewithChina’slabormarketrealitiesandshouldbeprioritized,anofficialsaidTuesday.

A、the;/
B、/;the
C、/;/
D、the;the