My father is clearly in____ dilemma about how to handle___ quarrel between us. [ ]

A. the; a    

B. /; the      

C. a; the      

D. a; /

当线路本体检修或多端线路仅有一端处于带电时，输电回路的功能已完全丧失，则该输电回路停运，但需考虑折算系数。