Answer: c)compares favorably with ads placed in traditional media.
Step-by-step explanation:
CPM(cost-per-thousand) is basically defined as the one web page that has cost 1000 advertisements in the marketing world. Web ads or advertisements are the online marketing strategy that is also known as online advertising. So, according to the CPM,web ads have a main focus on the comparison with the traditional media as they advertise through the traditional ways such as radio , printing etc.So, there is a sort of competition in both the methods for advertising.