Write the output of the following programs
a. DECLARE FUNCTION Answer$(X$)
CLS
Y$ = "Question"
PRINT Answer$(Y$)
END
FUNCTION Answer$(X$)
FOR I = LEN(X$) TO 1 STEP -2
Z$ = MID$(x$, 1,1) +Z$
NEXTI
Answers%3DZS
END FUNCTION

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.