You have been hired as the DBA for Haphazard, Inc. You are asked to fulfill the following needs of the Oracle Database environment. The company needs requires you to complete the following: Users, roles, and privileges need to be added to the database. 

1. Creat a user account NLitzinger identified by the password Dubrucr90. 

2. Grant NLitzinger the SELECT and UPDATE permissions on the table called clients. 

3. Creat a user account HMimnaugh identified by the password EvCsvds01. 

4. Grant HMimnaugh the SELECT and DELETE permissions on the table called clients. 

5. Creat a user account TylerM identified by the password Fwdtwet12. 

6. Grant TylerM the SELECT and INSERT permissions on the table called clients. 

7. Creat a role named Most_Privileged without a password. 

8. Grant the Most_Privileged role the UPDATE and DELETE permissions on the clients table. 

9. Add all users to the Most_Privileged role. 

10. List all user in the database with their permissions.