Study the following code snippet:

class Question

$\{$

public:

Question$()$;

void set$\_$text$($string new$\_$text$)$;

void set$\_$answer$($string new$\_$answer$)$;

void display$()$ const;

private:

string text;

string answer;

$\}$;

Question::Question$()$

$\{$

text $=""$;

answer $=""$;

$\}$

void Question::set$\_$text$($string new$\_$text$)$

$\{$

text $=$ new$\_$text;

$\}$

void Question::set$\_$answer$($string new$\_$answer$)$

$\{$

answer $=$ new$\_$answer;

$\}$

void Question::display$()$ const

$\{$

cout $<<$ "Question: $"<<$ text $<<$ endl;

cout $<<$ "Answer: $"<<$ answer $<<$ endl;

$\}$

class ChoiceQuestion : public Question

$\{$

public:

ChoiceQuestion$()$;

void set$\_$text$($string new$\_$text$)$;

void set$\_$answer$($string new$\_$answer$)$;

void display$()$ const;

$\}$;

ChoiceQuestion::ChoiceQuestion$()$

: Question$()$

$\{\}$

void ChoiceQuestion::set$\_$text$($string new$\_$text$)$

$\{$

Question::set$\_$text$($new$\_$text$)$;

$\}$

void ChoiceQuestion::set$\_$answer$($string new$\_$answer$)$

$\{$

Question::set$\_$answer$($new$\_$answer$)$;

$\}$

int main$()$

$\{$

ChoiceQuestion q$1$;

q$1.$set$\_$text$("$What is C$++?")$;

return $0$;

$\}$

Which function is called by the q$1.$set$\_$text$("$What is C$++")$ statement?

void ChoiceQuestion::set$\_$text$($string new$\_$text$)$

void Question::set$\_$text$($string new$\_$text$)$

ChoiceQuestion::ChoiceQuestion$()$

Question::Question$()$