Declare a struct named GeneralStore which contains properties as product id, product name, quantity, price and discount. Create a C++ program to handle the following file operations in a file store.txt. a) insert() : Insert 10 products record into the file in each line. b) display(): Read and display only the names starting from letter f otherwise display product is not found. c) discountProducts(): show products from the file which are on 50% discount. d) sumOfPrice(): Sum of all prices of all products in that file. e) Write the definition of a function main that tests each of these functions in the form of menu such as: I: insert() D: display() S: sumOfPrice() P: discountProducts():