The following program generates an error. Why?

#include

#include

using namespace std;

class CurrencyConverter $\{$

public:

string toCurrency;

private:

int amount;

CurrencyConverter ConvMoney$($int amt, string toCurr$)$;

$\}$;

CurrencyConverter CurrencyConverter::ConvMoney$($int amt, string toCurr$)\{$

CurrencyConverter myMoney;

if $($toCurr $==$ "Euro"$)\{$

myMoney.amount $=$ amt $*\mathrm{.}89$;

$\}$

else if $($toCurr $==$ "Yen"$)\{$

myMoney.amount $=$ amt $*108\mathrm{.}67$;

$\}$

return myMoney;

$\}$

int main$()\{$

int amountIn;

string strCurr;

CurrencyConverter newMoney;

cout $<<$ "Enter the amount to convert and currency:";

cin $>>$ amountIn;

cin $>>$ strCurr;

newMoney $=$ newMoney.ConvMoney$($amountIn$,$ strCurr$)$;

return $0$;

$\}$

Group of answer choices

The object newMoney should be created using a vector.

The function ConvMoney should be made public to call it in main.

The class should be made in separate files.

Only the amount should be passed as an argument to the function.