Which of the Following Parties Can Defeat a Perfected Security

Multiple Choice

Which of the following parties can defeat a perfected security interest?

A) A "buyer in ordinary course of business."
B) A buyer of consumer goods if the buyer is not aware of the security interest, gives value for the goods, will continue to use the goods as consumer goods, and the secured party has not filed a financing statement.
C) A buyer who purchases chattel paper or an instrument in the ordinary course of business, and then takes possession.
D) All of the above are correct.