The widespread popularity of sports and entertainment forces marketers in this industry to implement

Undifferentiated marketing

Market segmentation

Internet marketing
techniques

Marginal analysis

Which effect did the united states supreme court's decision in plessy v. ferguson have? 1. ending segregation in all public schools in america 2. protecting voting rights for african americans by eliminating literacy tests 3. upholding the rights of all citizens to be treated equally by the government 4. authorizing the system that kept black and white people separated