Item 9A. Controls and Procedures.

Evaluation of Disclosure Controls and Procedures. Management, including the principal executive officer and principal financial officer, evaluated the effectiveness of our disclosure controls and procedures (as defined in Rule 13a-15(e) or 15d-15(e) under the Exchange Act), as of April 30, 2018 (the “Evaluation Date”). Based on that evaluation, the principal executive officer and principal financial officer have concluded that, as of the Evaluation Date, our disclosure controls and procedures were effective in ensuring that information required to be disclosed in reports that we file or submit under the Exchange Act is (1) recorded, processed, summarized, and reported within the time periods specified in SEC rules and forms, and (2) accumulated and communicated to management, including the chief executive officer and chief financial officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Controls. There were no changes in internal control over financial reporting that occurred during the fourth quarter ended April 30, 2018, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Management’s report on internal control over financial reporting and the attestation report of our independent registered public accounting firm are set forth in our 2018 Annual Report to Shareholders under the headings “Report of Management on Internal Control Over Financial Reporting” and “Report of Independent Registered Public Accounting Firm on Internal Control Over Financial Reporting,” which reports are incorporated herein by reference.