Given the file structure shown in Figure 1.1, answer Problems 1-2. FIGURE 1.1 The File Structure for Problems 1-2 Problem 1: What problem would you encounter if you wanted to produce a listing by city? How would you solve this problem by altering the file structure? Problem 2: If you wanted to produce a listing of the file contents by last name, area code, city, state, or zip code, how would you alter the file structure? Problem 3: Write the business rules that are reflected in the ERD shown in Figure 1.2. FiGUKE 1.L ine Lrow s root t tor prodiem 3