3.15Consider the bank database of Figure 3.19, where the primary keys are underlined.

Construct the following SQL queries for this relational database. a. Find all customers who does not have an account at all the branches located in Brooklyn. b. Find out the amount of loan each customer can have if the total sum of all loan amounts in the bank distributed evenly. c. Find the names of all branches that does not have assets greater than those of at least one branch located in Brooklyn.