Pre-Test: Music downloading has increased in part due to , subscription-based services that allow users to store files online and access them from computers and digital devices anywhere.

Sarah is having a hard time finding a template for her advertising business that she may be able to use at a later date and also make it available to her colleagues

1)consider the following code snippet: #ifndef book_h#define book_hconst double max_cost = 1000.0; class book{public: book(); book(double new_cost); void set_cost(double new_cost); double get_cost() const; private: double cost; }; double calculate_terms(book bk); #endifwhich of the following is correct? a)the header file is correct as given.b)the definition of max_cost should be removed since header files should not contain constants.c)the definition of book should be removed since header files should not contain class definitions.d)the body of the calculate_terms function should be added to the header file.

What did creator markus “notch" persson initially call his game