Question 23 1 pts How does a stringstream work? It extracts a string variable from an input stream It is used to output stream values O It allows you to use stream operations on an object based on a string Its name is Bruce. Bruce stringstream. Question 24 1 pts How do you open a text file for output in C++? O you can't include the fstream library O create an ofstream O both band Question 25 1 pts What does the 'new' keyword do in C++? it creates a new instance of a class O it creates a variable on the heap and a pointer to that variable on the stackt it creates a variable on the stack and a pointer to that variable on the heap It doesn't do anything