a multiple choice for C++ string, thanks

Which of the following is true regarding std: : string and std: : string_view in C++17? Select all that apply. Pick ONE OR MORE options A (possibly cv-qualified) instance of std::string can be passed to any function that expects an argument of type std::string_view A (possibly cv-qualified) instance of std::string_view can be passed to any function that expects an argument of type std::string The data member of a std::string_view is always a valid C-string A std::string instance is immutable: performing operations such as concatenation always produces a brand new std::string instance The destructor of std::string_view is a no-op, while the destructor for std::string may have to return dynamically allocated memory Clear Selection