challenge: According to research, how do investors typically react to corporate events, such as earnings announcements and stock splits?
  
  A. They react neutrally, with no significant change in their investment behavior
  B. They react randomly, with no discernible pattern
  C. They under-react, failing to fully incorporate the new information into their investment decisions
  D. They over-react, leading to large fluctuations in stock prices
  Answer: 