Alibaba Cloud OSS provides three primary access permissions for buckets: Private, Public-read, and Public-read-write.

Private: Only the owner has access to read or write data.

Public-read: The owner can read and write, but others can only read.

Public-read-write: The bucket is fully open for reading and writing by all users.There is no Private-read permission in OSS access control options, so option A is incorrect.