2D3) Alpha Trading Analysts discovered from looking at charts of past stock prices that if she buys just after a stock price has declined for three consecutive days, she makes money every time! This...

2D3)

Alpha Trading Analysts discovered from looking at charts of past stock prices that if she buys just after a stock price has declined for three consecutive days, she makes money every time! This is a violation of ________ market efficiency.

1. 
   
   weak form.
   


2. 
   
   semi-strong form.
   


3. 
   
   strong form.
   


4. 
   
   Investor confidence.