Which of the following (hypothetical) observations would most contradict the proposition that the stock market is weakly efficient? Explain. a. Over 25% of mutual funds outperform the market on...

Which of the following (hypothetical) observations would most contradict the proposition that the stock market is weakly efficient? Explain.
a. Over 25% of mutual funds outperform the market on average.
b. Insiders earn abnormal trading profits.
c. Every January, the stock market earns abnormal returns.