9. The ECB shall cooperate sincerely with any investigations by the European Parliament, subject to the TFEU. The ECB and the European Parliament shall conclude appropriate arrangements on the practical modalities of the exercise of democratic accountability and oversight over the exercise of the tasks conferred on the ECB by this Regulation. Those arrangements shall cover, inter alia, access to information, cooperation in investigations and information on the selection procedure of the Chair of the Supervisory Board.