Considerthreefirmssellinggoodsonefirmsellsagoodwithanincomeelasticityof demand less than zero, one firm sells a good with an income elasticity of demand greater than zero but less than one, and one firm sells a good with an income elasticity of demand greater than one. During a severe economic downturn, which firm is likely to see its sales decline the most? Which firm is likely to see its sales increase the most? Explain.