（单选题）
The user HR owns the EMP table. The user HR grants privileges to the user SCOTT by using this command： SQL> GRANT SELECT，INSERT，UPDATE ON emp TO scott WITH GRANT OPTION； The user SCOTT executes this command to grant privileges to the user JIM： SQL> GRANT SELECT，INSERT，UPDATE ON hr.emp TO jim； Now， the user HR decides to revoke privileges from JIM using this command： SQL> REVOKE SELECT，INSERT，UPDATE ON emp FROM jim； Which statement is true after HR issues the REVOKE command（）
AThe command fails because SCOTT still has privileges.
BThe command succeeds and privileges are revoked from JIM.
CThe command fails because HR cannot revoke the privileges from JIM.
DThe command succeeds and only HR has the privilege to perform the SELECT， INSERT， and UPDATEoperations on the EMP table.
正确答案
答案解析
略
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