The person on an e-list responsible for enforcing behavior rules is called a(n) ________

If you want to be able to compile the following code,

Rational r1; int x; cout << r1 + x << endl; which overloaded operator(s) do you need? a. friend Rational operator+( const Rational& left, int right); b. friend void operator+ (const Rational& left, int right); c. friend ostream operator << (ostream& out, const Rational& object); d. friend ostream& operator << (ostream& out, const Rational& object); e. A and C f. A and D

You want to use only one name, funct1, from name space MyNamespace. The directive #include “MyNamespace” has been places at the top of the file. You will call this function a large number of times in a block. Which of the following will make only the name funct1 available only in that block (not outside the block)?

a) Place``` using namespace std; ``` b) Place``` using namespace MyNamespace; ``` c) Place``` using namespace MyNamespace; ``` just inside the block where you want to use d) Place``` using MyNamespace::func1; ```just inside the block where you want to use funct1. e) Place``` #include “MyNamespace” ```#include “MyNamespace”the name func1.