Final answer:
Option (A), The Data Import Wizard is the best tool for de-duping records, as it has built-in features for matching and preventing duplicates during the import process.
Step-by-step explanation:
The best data import tool for de-duping records is the Data Import Wizard. This tool typically includes de-duplication features that prevent the import of duplicate records by matching them against existing data based on specified criteria. Although tools like Data Loader, Data Import Templates, and Import Wizard for Excel can be used to import data, the Data Import Wizard is often preferred for its built-in de-duplication capabilities.
When using the Data Import Wizard, it compares new records against existing ones using fields like email, name, or custom matching fields. If a match is found, the Wizard can be configured to skip the record, update the existing record, or create a duplicate, depending on the user's preference. This functionality makes it a more suitable choice for managing data cleanliness.