Final answer:
According to Standard of Practice 9-1, REALTORS® should use electronic signature tools to keep transaction documents up to date. This facilitates the accurate tracking of offers and counter-offers in real estate transactions.
Step-by-step explanation:
Per Standard of Practice 9-1, REALTORS® should use electronic tools such as software or platforms that allow for electronic signatures and record keeping to ensure that transaction documents are kept current at all times. This standard relates to the accurate presentation of offers and counter-offers to purchase property and suggests that REALTORS® need to have a system in place for keeping track of document changes and updates effectively. While options like encryption software, proper filing systems, and digital notarization are important for other aspects of managing transaction documents, it is electronic signatures that are directly related to keeping such documents current.