Ctrl + I is an example of a(n) ________

Given the class definition, give the class diagram.

```
class Pair
{
public:
Pair();
Pair(double, double);
void setFirst(double);
void setSecond(double);
double getFirst();
double getSecond();
protected:
double first;
double second;
};
```

Your new software project manager is OK with requirements that are not fully specified up front.  He recommends a team-based approach to development.  He is very likely to be a proponent of the _______ approach to software development.

A. Waterfall B. outsourced C. Agile D. packages solution