Answer:1. Advertising
2. D. They have more information about the product and the increased promotions give the consumers deals they otherwise would not have experienced.
Step-by-step explanation:
The war between Pepsi and Coca- Cola is an advertisement war in which each is trying to gain the consumers patronage by proving the superiority of their product over others. It has nothing to do with research, price nor efficiency.
The advertisement provides more information on the product to the consumers and promotion offer like free gift which they hitherto would not have enjoyed.
Marketing or advertising cost are not passed to consumers and the advertisement been interesting adds little or no value to the consumers.