Concept:A transaction file temporarily stores data about business activities before it is used to update permanent records.
Explanation:Transaction files hold records of daily transactions such as sales, purchases, and payments.
These files are processed in batches and are then used to update the master files, which contain the official, ongoing records.
This makes processing faster and allows transactions to be checked and audited.
Therefore, the main purpose of a transaction file is to update master files, not to record assets or make decisions directly.
Answer:D. to update master files