Given the following ERD: Branch PK BranchNo Client Staff PK,FK1 StaffNo PK PK StaffNo Position Name Address Salary Name Type -H MaxRent DateJoined FK1 BranchNo Gender PhoneNo Manager PK,FK1 StaffNo StartDate Bonus Lease PK,FK1,FK2 StaffNo PK PK,FK1 LeaseNo ClientNo PK,FK2 StaffNo PK PropertyNo FK2 PropertyNo PK OwnerNo MonthlyRent PaymentMethod DepositPaid? Duration StartDate FinishDate Address Type Address PhoneNo MonthlyRent OwnerNo FK1 Identify the following: A strong entity; A weak entity; .A one-to-one relationship; .A one-to-many relationship; A relationship with optional cardinality in at least one direction