Final answer:
If the data table 'Related parts' is migrated from the QA environment to the production environment, it will have a total of 4000 records in the production environment.
Step-by-step explanation:
If the data table 'Related parts' is migrated from the QA environment to the production environment, it will have a total of 4000 records in the production environment. If the data table 'Related parts' is migrated from the QA environment to the production environment, it will have a total of 4000 records in the production environment.
This is because the table already has 4000 records in the production environment, and none of those records will be lost during the migration process. The table in the QA environment, which has 3000 records, will essentially replace the existing table in the production environment, resulting in a total of 4000 records.