CHICAGO--(BUSINESS WIRE)--Fitch Ratings affirms the 'AAA' ratings of mandatory redeemable preferred stock (MRPS) issued by DNP Select Income Fund Inc. (NYSE: DNP), a non-diversified closed-end fund: --$132,000,000 of series A MRPS, due 2019, at 'AAA'; --$60,000,000 of series B MRPS, due 2021 at 'AAA'; --$75,000,000 of series C MRPS, due 2024 at 'AAA'; --$33,000,000 of series D MRPS, due 2021 at 'AAA'. KEY RATING DRIVERS The rating affirmation primarily reflects: --Sufficient asset coverage prov