Based on the fact that these four companies dominate the cereal industry, the four firms can be said to have C. a sustainable competitive advantage.
<h3>What does it mean to have sustainable competitive advantage?</h3>
These refer to any factors that a company can use to dominate the industry and provide better service to its customers.
The four companies have dominated the industry and as such as able to offer their customers more service than others so they must have a sustainable competitive advantage.
Options include:
A.identical marketing mixes.
B.customer excellence.
C.a sustainable competitive advantage.
D.achieved product excellence.
E.violated laws
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The function shown in the graph in the image attached below is 
.
<u>Given the following data:</u>
- Points on the x-axis = (0, 4)
- Points on the y-axis = (0, 4)
First of all, we would determine the slope of this line by using the following formula;
Substituting the points into the formula, we have;
Slope, m = 1
Next, we would find the intercept:
Let x = 0, for the y-intercept.
b = 4
Therefore, the function shown in the graph in the image attached below is
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