Which of the Following Code Snippets Denotes That the Purse

Which of the following code snippets denotes that the Purse class depends on the Wallet class?

A) public class Purse extends Wallet
B) public class Wallet extends Purse
C) public class Wallet
{
Private Purse aPurse;
}
D) public class Purse
{
Private Wallet aWallet;
}