Answer:
The answer is full line strategy.
Step-by-step explanation:
Full-line strategy is a product line strategy in which there are many variations of a product. The idea is to capture as wide as possible different number of customers.
In the example with proctor and Gamble, by offering and bombarding the market with detergents under different names, the customer is left with an illusion of choice. Not knowing that they are all under the same family. This ensures that no matter, the customers' choice, the sales is still coming to the parent company.