QUESTION 4 Which of the following statements contradicts weak form efficiency a. I make profit, consistently and on a risk-adjusted basis, when I sell stocks each time the Fed announces its ecooomic outlook is negative, and sell a week after b.1makeprofit from time to time, ifl sell BM on days its price falls by 1%, and re-sell one day after e. Employees of firm ABC make protit, consistently and on a risk-adjusted basis, when they short the stock of their company d. I make profit, consistently and on a risk-adjusted basis, wben I short sell stocks for one day each time l observe the following price pattern over the previous 3 days: up by 0.1 02% down by 0.3-0.4%, up by 0.2-04%