Stock price behavior is often accompanied by substantial controversy, uncertainty, and speculation. Please select one of the following NBC News videos: Oprah Sends Weight Watchers Stock Soaring. Wall Street Goes Wild for Twitter. For this week's discussion, please respond to the video you've selected as follows: How did the stock price immediately respond following these events? How has the stock price changed in subsequent years? What is it trading for today? How might the present value free cash-flow method have been used to assess the fairness of the stock price? What are the challenges of using the present value free cash-flow method in practice? How can accountants overcome these challenges? Video link: https://www.nbcnews.com/nightly-news/video/oprah-s-got-a-new-favorite-thing--sends-weight-watchers-stock-soaring-547518531698