Consider the following schema:Product(maker, model, type)PC(model, speed, ram, hd, price)Laptop(model, speed, ram, hd, screen, price)Printer(model, color, type, price)The key fields are underlined. Write the following queries in SQL:a. Find the maker of the color printer which has the lowest price among all the color printers (assume coloris a Boolean typed attribute).b. Find the maker who makes the most number of products. c. Find the models of PCs which have the highest price among all the PCs of the same speed, the same ram, and the same hd.