d understands that Deulscha Bank Alex, Brown may, but is not required to, seek vatllicalion ol the urxjersignod's msuuctiona by call back end lhal 0oulEcfie Bank Alnx, Brown may rn ns sola discretion taluse to execuie such Insliuclloos (Inciiifllng standing Insituerions) given pursuant to Ihis auihoiizeiion, with