When writing a query, write the query in a way that it would work over all possible database instances and not just for the given example instance!

Give an expression in the relational algebra to express each of the following queries:

A. List the names and the prices of all the products.

B. Fine the name of the products with a price less than or equal to $35.

C. Fine all the products with a price between $10 and $100.

D. List the names of customers who made an order in March 2022.

E. List names of customers who have made mpre that 2 orders.

F. Find all information about customers who made an order with a total amount greater than $300.

Consider the following Employer database schema and example instance: Customers Orders OrderDetails Products