Define structure.Explain nested structure with example.Create a structure named book with name, author, and publisher as its members.Write a program using this structure to read data of 50 books and display name of those books published by 'XXX' publisher.[1+2+2+5]

--- A structure is a user-defined data type in C that allows grouping of variables of different data types under a single name. Each variable inside a structure is called a member or field. Syntax: --- A nested structure is a structure that contains another structure as one of its members. That i...