Which of the Following Is True About Perfection of Purchase

Which of the following is true about perfection of purchase money security interests?

A) They perfect automatically, for any type of goods, upon attachment.
B) For something other than inventory, a perfected purchase money security interest prevails over a perfected nonpurchase money security interest in after-acquired property if it is perfected when the debtor receives possession or with twenty days after the debtor receives possession of the collateral.
C) There is no special treatment for purchase money security interests in inventory.
D) For consumer goods, any purchase money security interest in them perfects without attachment.
E) The perfected purchase money security interest prevails if the purchase money secured party gives written notice of the perfection to the perfected nonpurchase money secured party before the debtor receives possession of the collateral.