Given the following mystery function, what is the output if the number passed to the function is 7: int mystery(int number) { if (number == 0 || number == return number; 1) else return mystery(number...

In C++

Extracted text: Given the following mystery function, what is the output if the number passed to the function is 7: int mystery(int number) { if (number == 0 || number == return number; 1) else return mystery(number - 1) + mystery(number - 2);