aoude proauct$\_$pr$$ce;

$\}$;

class SalesOrder

$\{$

public:

SalesOrder$($string customer$\_$name, string d$\_$description,

double price$)$;

void display$\_$sales$\_$order$()$ const;

private:

Product prdt;

string customer;

$\}$;

class RetailShop

$\{$

public:

RetailShop$()$;

void set$\_$sales$\_$order$($SalesOrder new$\_$SalesOrder$)$;

SalesOrder get$\_$sales$\_$order$()$;

private:

SalesOrder sales$\_$order;

$\}$;

Which of the following statements is correct?

The SalesOrder class aggregates the Product class.

The Product class aggregates the RetailShop class.

The Product class aggregates the SalesOrder class.

The SalesOrder class aggregates the RetailShop class.