Which of the Following Occurs Upon the Attachment of a Security

Which of the following occurs upon the attachment of a security interest?

A) The creditor obtains certain rights that become effective if the debtor defaults.
B) The creditor's security interest will obtain priority over all later security interests.
C) Notice is given to the world that the creditor has a security interest in the collateral.
D) Title to the collateral shifts to the creditor.
E) The creditor obtains possession of the collateral.