A sales rep has a list of 300 accounts with contacts that they want to load at one time. Which tool should the administrator utilize to import the records to Salesforce?

The Data Import Wizard is the most appropriate native Salesforce tool for importing up to 50,000 records, specifically capable of importing standard objects like Accounts and Contacts while maintaining their relationships, and is user-friendly for this volume.

Manual Import is not a recognized Salesforce tool and would be impractical and inefficient for importing 300 records.

Dataloader.io is a third-party tool, and while functional, the Data Import Wizard is a native Salesforce solution that is suitable and often preferred for this import scenario.

Data Loader is a client application designed for larger data volumes (up to 5 million records) and requires more setup and technical expertise than the Data Import Wizard for 300 records with related objects.