Southern Elegance, a catering company, is planning to advertise its services to businesses in the area. It wants to use an advertising medium which is low in cost, geographically flexible, widely used, and has audience selectivity. Which of the following media is Southern Elegance most likely to use?a. Direct mailb. Outdoorc. Televesiond. Radio

50.)the diagram below represents the wave fronts produced by a point source moving to the right in a uniformmedium. observers are located at points a and b.compared to the wave frequency and wavelength observed at point a, the wave observed at point b has a(1) higher frequency and a shorter wavelength(2) higher frequency and a longer wavelength(3) lower frequency and a shorter wavelength(4) lower frequency and a longer wavelength