\( \begin{array}{l}\text { Given the following class definition and the following } \\ \text { member function header, which is the correct way to } \\ \text { output the private data? } \\ \text { class Person } \\ \text { I public: } \\ \text { void outputPerson(ostream\& out); } \\ \text { private: } \\ \text { int age; } \\ \text { float weight; } \\ \text { int id; }\end{array} \) I; \( \begin{array}{l}\text { I/what goes here? } \\ \text { void outputPerson(ostream\& out) } \\ \text { I outputPerson(person); }\end{array} \) out \ll age << weight << id;

To correctly output the private data members of the `Person` class using the `outputPerson` member function, you need to follow these steps: 1. **Understand the function signature**: The function `void outputPerson(ostream& out)` takes an output stream as a parameter. This allows you to specify where the output will go (e.g., to the console, a file, etc.). 2. **Accessing private members**: Since `age`, `weight`, and `id` are private members of the `Person` class, you can access them directly within the member function `outputPerson`. 3. **Outputting the data**: You will use the output stream `out` to send the values of `age`, `weight`, and `id` to the specified output. Here’s how you can implement the `outputPerson` function: ```cpp void Person::outputPerson(ostream& out) { out << age << " " << weight << " " << id; } ``` ### Explanation of the Code: - `Person::outputPerson`: This indicates that the `outputPerson` function is a member of the `Person` class. - `ostream& out`: This is the parameter that allows you to specify the output stream. - `out << age << " " << weight << " " << id;`: This line outputs the values of `age`, `weight`, and `id` to the output stream, separated by spaces. ### Complete Example: Here’s how the complete class definition might look: ```cpp #include using namespace std; class Person { public: void outputPerson(ostream& out); private: int age; float weight; int id; }; void Person::outputPerson(ostream& out) { out << age << " " << weight << " " << id; } ``` ### Usage: To use this function, you would create an instance of `Person`, set the values of `age`, `weight`, and `id`, and then call `outputPerson` with an output stream: ```cpp int main() { Person person; // Assume there are methods to set age, weight, and id person.outputPerson(cout); // Outputs to the console return 0; } ``` This implementation correctly outputs the private data members of the `Person` class.