Which of the following are objections that a creditor may bring to bankruptcy distribution proceedings?
1) An unsecured creditor may object to being paid after a secured creditor if his claim was filed first.
2) An unsecured creditor may object to being excluded from the distribution if she had not been notified of the bankruptcy.
3) A secured creditor may object to being excluded from the distribution if she had not been notified of the bankruptcy.
4) A creditor may object to a distribution plan if the debtor has been fraudulent.