 DNP Select Income Fund Inc. NYSE: DNP, Duff Phelps Utility and Infrastructure Fund Inc. NYSE: DPG, Duff Phelps Utility and Corporate Bond Trust Inc. NYSE: DUC, and DTF Tax-Free Income Inc. NYSE: DTF each, a Fund and collectively, the Funds, four closed-end funds advised by Duff Phelps Investment Management Co., today announced that they had elected, by a resolution passed by the affirmative vote of all of the independent directors of each Fund, to opt in to the Maryland Control Share Acquisition Act MCSAA, effective on June 8, 2020. 