Answer:
Market Expansion Strategy.
Step-by-step explanation:
When a company plans to enter into a new market other than its current location of business operations, this strategy is known as Market Expansion.
Burger 21 was currently operating in Tampa but now it has opened a new restaurant in Chicagoland and has expanded it business operations into a new state. This is an example of Market Expansion Strategy. This strategy helps companies to gain new customers and boost its revenue.