We ________the difficulty together, but why didn't you tell me? [ ]

A. should face  

B. might face

C. could have faced  

D. must have faced

萨特在短篇小说《墙》里，探讨了关于死的问题。请你结合主人公伊比埃塔面对死亡的反应，分析作家对待死亡的态度。