Explanation
Option B is the correct answer because it describes a way to create a scheduled job in another system to move data into the B2B Commerce org without additional third party tools. The developer can set up an SFTP server as a waystation, drop the files there using the off-platform job and schedule a job in-platform to process the file. This way, the developer can use the built-in integration capabilities of the B2B Commerce platform, such as the Windows Integration Service (WIS) or the Integration Job Definitions, to import the data from the SFTP server into the org. The other options are incorrect because they either require additional third party tools, such as WebDAV or CLI, or they do not create a scheduled job in another system, but rather in the same org. References: Creating and editing integration jobs, Create a B2B Commerce Org and Checkout Flow, B2B Commerce on Lightning Experience Developer Guide, B2B Commerce and D2C Commerce Developer Guide