单选题 It is strictly ______ that access to confidential documents is denied to all but a few.
A. secured B. forbidden
C. regulated D. determined

【正确答案】 B
【答案解析】拒绝一些人接触机密文件是被严格禁止的。forbidden禁止；secure保证，获得；legulate管理，控制，调节；determine决定，确定，限定。