Which of the following would be evidence that the market is not weak-form efficient? Select one: a. Mechanical trading rules consistently outperform a "buy and hold" strategy. b. Both (1) there is a predictable relationship between successive price changes and (ii) mechanical trading rules consistently outperform a "buy and hold" strategy. c. Analysis of publicly available information enables mispriced securities to be consistently identified O d. There is a predictable relationship between successive price changes