What is output?

#include

using namespace std;

class People $\{$

public:

virtual void PrintInfo$()=0$;

void PrintInformation$()\{$

cout $<<"$In Base Class People" $<<$ endl;

$\}$

protected:

string name;

int age;

$\}$;

class Teacher : public People $\{$

public:

void PrintInfo$()\{$

cout $<<"$In Child Class Teacher" $<<$ endl;

$\}$

private:

int experience;

$\}$;

class Principal : public Teacher $\{$

public:

void PrintInformation$()\{$

cout $<<"$In Child Class Principal" $<<$ endl;

$\}$

$\}$;

int main$()\{$

Principal Tim;

Tim.PrintInfo$()$;

return $0$;

$\}$

What is output?

#include

using namespace std;

class People $\{$

public:

virtual void PrintInfo$()=0$;

void PrintInformation$()\{$

cout $<<"$In Base Class People" $<<$ endl;

$\}$

protected:

string name;

int age;

$\}$;

class Teacher : public People $\{$

public:

void PrintInfo$()\{$

cout $<<"$In Child Class Teacher" $<<$ endl;

$\}$

private:

int experience;

$\}$;

class Principal : public Teacher $\{$

public:

void PrintInformation$()\{$

cout $<<"$In Child Class Principal" $<<$ endl;

$\}$

$\}$;

int main$()\{$

Principal Tim;

Tim.PrintInfo$()$;

return $0$;

$\}$

In Base Class People

In Child Class Principal

Error: Compiler error

In Child Class Teacher