What is the purpose of the Electronic System for Travel Authorization (ESTA)?

The Electronic System for Travel Authorization (ESTA) serves the specific purpose of determining eligibility for travel under the Visa Waiver Program (VWP). This system is designed for citizens of specified countries who wish to travel to the United States for tourism or business purposes for stays of 90 days or less without first obtaining a visa. By submitting an ESTA application, travelers provide necessary personal information and answer questions regarding their eligibility, ensuring that they meet the VWP requirements.

This pre-screening process helps enhance the security of the U.S. by allowing authorities to assess an individual's travel credentials before they embark on their journey. The correct option highlights the core function of ESTA, whereas the other choices do not accurately reflect its purpose or encompass the specifics of the program.