To be a key field, the data in the field must
A. be unique for each record.
B. be longer than other fields.
C. contain both letters and numbers.
D. be one of the first three fields.
Answer:A
To be a key field, the data in the field must
A. be unique for each record. B. be longer than other fields. C. contain both letters and numbers. D. be one of the first three fields.