 NEW YORK--BUSINESS WIRE--BlackRock Advisors, LLC announced today that, at a joint special meeting of shareholders the Meeting of BlackRock Massachusetts Tax-Exempt Trust NYSE: MHE, BlackRock MuniYield Arizona Fund, Inc. NYSE: MZA, and BlackRock MuniYield Quality Fund, Inc. NYSE: MQY, the requisite votes of shareholders of MQY have approved the reorganization of each of MHE, MZA, BlackRock Maryland Municipal Bond Trust NYSE: BZM, BlackRock MuniYield Investment Fund NYSE: MYF and 