Answer:
A. Go up
Step-by-step explanation:
The actual earnings was more than the analysts' estimate. It is a positive surprise to the market. So, the stock price goes up all else being equal. The stock price goes up, not down , hence Option B is incorrect. Option C is incorrect because all else being equal, the stock price goes up . Also, the stock price does not remain unchanged, it goes up hence Option D is incorrect. Lastly, there is sufficient data to say that the stock price goes up when there is a positive surprise hence Option E is incorrect.