The sight of the ruined temple ______ him of the time when he was trapped but______ to escape from it

through a narrow opening in the quake.    [ ]

A. called up; was able to  

B. informed; tried  

C. reminded; succeeded  

D. reminded; managed

只有当律师甲参加时，乙和丙才能签订合同。而甲只在自己的律师事务所参与合同签订工作。只有丁陪同，乙才去甲的事务所。
如果上面的陈述是真实的，下面哪项也必定是真实的( )

A．丁不去事务所，乙和丙无法签订合同
B．甲参加，乙和丙在事务所签订合同
C．丁去了事务所，乙和丙签订合同
D．乙和丙没能签订合同，是由于律师甲没有参加