Describe the different ways of implementing one-to-one relationships. Assume you are maintaining information on offices (office numbers, buildings, and phone numbers) and faculty (numbers and names). No office houses more than one faculty member; no faculty member is assigned more than one office. Illustrate the ways of implementing one-to-one relationships using offices and faculty. Which option would be best in each of the following situations? a. A faculty member must have an office, and each office must be occupied by a faculty member. Offices( Office_Num, Buildings, Phone Number, Faculty_Num)Faculty(Faculty_Num, Names, Office_Num)b. A faculty member must have an office, but some offices are not currently occupied. You must maintain information about the unoccupied offices in an Office relation. Offices( Office_Num, Buildings, Phone_Number)Faculty(Faculty_Num, Names, Office Num)c. Some faculty members do not have an office, but all offices are occupied. Offices( Office_Num, Buildings, Phone_Number)Faculty (Faculty_Num , Names ,officeNumber) d. Some faculty members do not have an office, but some offices are not occupied.