Answer:
Option A. is the answer.
Step-by-step explanation:
In the graph attached red colored line is representing the cost function for the custom made computers.
Similarly green line is representing the revenue function.
Now we know break even point is no profit no loss point.
So to get the break even point we will get a common point lying on both the lines shown in the graph.
From the graph we get (12, 9) as the break even point, that comes after the sales of 12 computers.
Therefore, option A. 12 is the answer.
