Use the following table to determine whether each scenario is representative of weak-form, semistrong-form, or strong-form stock market efficiency. Stock Market Efficiency Type Weak- Semistrong- Strong- Form Form Form Scenario Edison notices Microsoft's stock continuously decreases in value in December and increases in value in January. He thinks he can profit by purchasing the stock when it has a low price in December and selling it at the beginning of the year once the price increases. Edison purchases the stock in December and waits until January to sell, but when he does, Microsoft's stock does not actually increase at the beginning of the year. O O Hilary notices that Zynga's stock is trading at $10.66 the day before it is scheduled to release its financial data for the quarter. Suppose Fox News runs a segment the night before Zynga plans to announce its financial data and claims that Zynga has had a down quarter due to the change in tariff policies, and as a result, Hilary decides to short a large amount of stock. Once trading opens the next day, Zynga's stock falls to $9.17 but then rises to $13.44 once their financial announcement is made. O Kevin, a chief financial officer of a public children's toy company, believes that the firm will begin to lose customers due to several product releases that he thinks are going to be unsuccessful. As a result of losing customers, Kevin believes that revenues will decrease sharply over the next few years, until the company can begin producing successful products. Kevin decides to short stock in the company in order to benefit from what he thinks will be a catastrophic price decrease in the coming months. Unfortunately for Kevin, when the products release, the stock price remains where it was, despite the customer's disappointment in the products. o o