Which one of the following renames a column heading in the output? Question 6 Not yet answered Marked out of 1.00 O a. Modify O b. Rename O c. Synonym O d. Alias Flag question What happens during the execution of given SQL statement? GRANT SELECT TO MANAGER Question 7 Not yet answered Marked out of 1.00 P Flag question O a grants role to manager O b. Allows manager to grant select privilege to other users OC Grants object privilege to all users O d. Select privilege is granted to role Manager