单选题：the command “chmod =r sample” has the same effect as command

the command “chmod =r sample” has the same effect as command @[A](1)
A. chmod 444 sample
B. chmod 400 sample
C. chmod 111 sample
D. chmod 100 sample



A.chmod 444 sample
B.chmod 400 sample
C.chmod 111 sample
D.chmod 100 sample


答案：A