Q3. Class Book (10 marks) Book is also a specialized Reference that has information about the publisher of this reference. It also has number of pages as one of its attributes. 1. Book is a derived class of Reference 2. It stores the publisher (type string or chart) of this reference and the number of pages of this book (type int); 1 1/3 COEN 244 - Winter 2021 3. It also implements the member functions get NumberOfPages(), which returns the number of pages of this reference. In the case of Book reference, the number of pages is a single number therefore, the member function simply returns this number At also implements functions related to the publisher