Lucy is an employee who earned $50,000 in salary in 2020. This salary amount was reported to the IRS by her employer on a Form W-2. Lucy reported a salary amount of $48,000 on her 2020 income tax return. If Lucys tax return is selected for an audit, which audit program likely identified her return for audit?

		Discriminant Function (DIF) System
		National Research Program (NRP)
		Document Matching Program (DMP)
		Taxpayer Compliance Management Program (TCMP)