When conducting a thorough interview to determine whether a taxpayer should apply for an ITIN, which of the following would be an appropriate action for a tax preparer to take? Ask questions to determine how many days the applicant has been physically present in the United States. Inform the taxpayer that they must be lawfully present in the United States before the application can be completed. Question the validity of the documents provided. Report any ITIN/SSN mismatch to their manager