Final answer:
The process of transferring data from old files to a new system is called migration.
Step-by-step explanation:
The process of transferring data from old files to a new system is called migration. During migration, the data is moved from the old database or files into the new database or system. This process ensures that the data is retained and accessible in the new system.
For example, let's say a company is upgrading its customer management system. To transfer the existing customer data to the new system, the company would need to perform a data migration.
In this context, the correct answer to the question is option 1) migration.