Which statement is true when using the allow command and deny command attributes when creating user permissions?

Which statement is true when using the allow command and deny command attributes when creating user permissions?

A. If you allow and deny the same commands, the Junos OS will fail the commit check. B. If you allow and deny the same command, the allow command permissions take precedence over the deny command permissions. C. If you specify a regular expression for allow and deny with two variants of a command, both will be ignored. D. The all login class permission bits take precedence over allow and deny when a user issues the rollback command.