Answer:
C. one-step approach to direct marketing.
Step-by-step explanation:
One-step approach to direct marketing-
It refers to the marketing strategy, where the method is directly used to get the order, is referred to as one - step approach to direct marketing.
The most common example of one - step approach to direct marketing, is the phone numbers or emails flashing on the television screen to make any order or purchase.
It is one of the most effective strategy to attract the consumers.
Hence, from the given question,
As Erika gets attracted to buy the shampoo and immediately order the shampoo by dialing the number flashing on the screen.