5. according to the big bang theory, how long ago did the milky way galaxy form?

a. 300,000 years ago

b. 10 billion years ago

c. 3 billion years ago

d. 13.7 million years ago

When running anti-virus software , what could be a reason where recipitent is not guaranteed that data being streamed will not get interrupted?

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.

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