Which of the following sequences of statements would ensure that James has the privileges of the roles of manager and sales? a.) CREATE ROLE sales INHERIT; CREATE ROLE manager INHERIT; GRANT manager to james; GRANT sales to manager; b.) CREATE ROLE sales NOINHERIT; CREATE ROLE manager INHERIT; GRANT manager to james; GRANT sales to manager; c.) CREATE ROLE sales NOINHERIT; CREATE ROLE manager NOINHERIT; GRANT manager to james; GRANT sales to manager; d.) CREATE ROLE sales NOINHERIT; CREATE ROLE manager NOINHERIT; GRANT sales to james; GRANT sales to manager