Suggested five fields are as follows:1. TCode —> To store the code of the teachers.TName —> To store the name of the teachers.TSubject —> To store the name of subjects for which the teacher is placed in the institution.Address —> To store the address of the teachers.Salary —> To store the monthly income of the teachers.2. TCode —> TextTName —> TextTSubject —> TextAddress —> TextSalary —> Number3. TCode is most likely to be the key field because it has a unique value for each of the records.