b) Now consider for 2008 that there are other competitors in the pre-engineered home business. Prefabrication can sell, Transportation can buyr and sell, and Construction can buyr from external parties and all divisions are operating at capacity. Market prices for l prefabricated housing unit, pre and post shipping, are $60,000 and $90,000, respectively. Further assume that at these prices, the optimal capacity remains at 200 units per division. Calculate operating income for each division using market prices as the transfer prices does your answer to part a change at all given these results