According to the semi-strong form of the EMH, investors who invest in a stock after a highly positive announcement concerning the stock can expect to earn a(n) Select one: O A. normal return because the stock will be fairly priced when purchased. B. extraordinary return because the new information will not affect the price until later. C. loss because things often are not what they seem. D. zero return because the next price is expected to be the same as the last price