A. They will need to manually update the data included in sensitive fields one the deployment to dev1 is completed.

B. They can create a Manual Task deployment step and manually remove the sensitive fields from dev1 once the deployment is completed.

C. They can use the Replace Value option in the Object Fields tab of their data templates and enter a random value in the fields that contain sensitive data.

D. They can use the Scramble Value option in the Object Fields tab of their data templates for fields that contain sensitive data, and Copado will replace the characters in the original value with random characters while deploying.