Which data model definition matches the example PayrollTransaction(pay_id, employee_id, amount, date, status)?

• A. PayrollTransaction(pay_id, employee_id, amount, date, status)
• B. PayrollTransaction(id, employee_id, total, timestamp)
• C. PayrollEvent(transaction_id, employee_id, amount, date)
• D. SalaryTxn(txn_id, emp_id, gross, date)

Answer: (A)

Matching a data model to an example comes down to using the same field names in the same order. The PayrollTransaction example defines five attributes in this exact sequence: pay_id, employee_id, amount, date, and status. The definition that mirrors both the name PayrollTransaction and this exact list of fields is the correct fit, because it preserves the intended structure and meaning of the data: each piece of information aligns with the corresponding attribute in the same position, ensuring proper storage, access, and future use.

Other options differ by renaming one or more fields or by changing the overall data model name, which would produce a different structure (for example, id instead of pay_id, total instead of amount, or date/timestamp swapped), or refer to a different concept (PayrollEvent vs PayrollTransaction). These changes break the direct mapping to the given example, so they don’t align as well with the stated data model.