Suppose that the price of the product is $4. How many units will the firm produce

Consider the following table. 

Quantity Total Cost
0 $ 16 
2 $ 17 
4 $ 18 
6 $ 19 
8 $ 21 
10 $ 27 
12 $ 35 
14 $ 45 

(1) Suppose that the price of the product is $4. How many units will the firm produce?
(2) In the long run, will the price rise or fall from the current level at $4? Explain the reason.