Answer:
The answer is A. Overconfidence
Explanation:
Investors in the described questions obviously have too much belief on themselves for the their abilities to assess the firm's capacities to create values for its shareholders given there are no certain evidences, for example, the constant and/or growing dividend streams, the better profit-generating capacities.
This is a good example of how Investors is overconfident in a stock's performances although it is unclear that the firm has been or will be performed at the investors' expected level.