Final answer:
SuperCenter engaged in intratype competition by offering dry cleaning, a strategy to attract more customers in a monopolistically competitive market by providing different but similar services.
Step-by-step explanation:
By offering dry cleaning, SuperCenter successfully engaged in intratype competition. Intratype competition refers to competition between similar types of retailers or businesses that offer supplementary services to their primary offerings.
This strategy is common in monopolistically competitive markets, where there are many firms selling differentiated but similar products or services.
Offering dry cleaning in a retail environment such as SuperCenter allows the company to differentiate itself from its competitors, potentially attracting more customers who are looking for a one-stop shopping experience.
In the context of the examples given, such as shops within the Mall of America or major aircraft manufacturers and soft drink brands, SuperCenter is creating a niche service within their existing market, which helps to attract a specific segment of customers, diversifying their business, and aiming to capture a larger share of consumer spending.
Therefore, the correct answer is 4) Intratype.