Tony caught up with me and it was ______ great comfort to me to have ______ company for it is dangerous to walk alone at midnight.

 [      ]

A. a; a

B. a; /

C. /; /

D. the; the

PDCA循环做好（），可以为以后的管理工作提供信息，还可以为奖惩兑现提供可靠依据。