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When there is a negative network externality for a good, the demand for that good O A. will be less elastic than it would have been without the negative network externality. O B. will be just as elastic as it would have been without the negative network externality. O C. may have a degree of elasticity that is more, less or the same as it would have without the negative network externality. O D. will be more elastic than it would have been without the negative network externality. Suppose a statistical study finds that the demand for Brand X automobile tires is Q = 800 -5P, where Q is the number of Brand X tires sold per year (in thousands of tires), and P is the price per tire. How confident would you be that this is an accurate equation for Brand X tire demand? O A. Not very confident because methods other than statistical studies are better at estimating demand equations. O B. Very confident because statistical studies are very accurate. O C. Not very confident because other factors affecting the sales of tires have been left out of the equation. O D. Very confident because the negative sign in front of price (P) means the demand curve has a negative slope, as it should