Which of the following validation options does the Document Validator tool offer?

I wasn't able to find a definitive reference on learning.sap.com that explicitly lists the validation options offered by the Document Validator tool in the context of the SAP Integration Suite, Managed Gateway for Spend Management, or Business Network. The material I could access doesn’t clearly enumerate these options.

However, based on typical functionality and supported features described across related SAP documentation (though not verified via learning.sap.com), the most likely valid options related to the Document Validator are:

•A. Schema Validation

•B. Content Validation

•C. Transformation

Options like D. User Login Credentials and E. Tax Calculation do not align with standard validation functionalities of such tools (they are operational or calculation features, not validations).

I cannot confirm these definitively from learning.sap.com because the relevant course or help pages that spell out the Document Validator’s validation capabilities were not found in my search results.

If you can provide a specific chapter, lesson title, or link from learning.sap.com about the Document Validator tool, I’d be able to check again more precisely.