General question

[deval90]

In C++, if the user-defined function is placed before the #include<iostream> and using
namespace std; statements, __.

A. cout and endl would not be recognized
B. compiler error messages would be issued.
C. the header file cannot support it.
CIS223 - Penn Wu 82
D. All of the above

i've gone through all my lectures but didnt find any answers. can somebody plz help me? appreciate ur help

[Bazzy]

Try compiling it to see what happens

[helios]

The question is poorly defined. It doesn't say what interfaces the function is using.