Which object never encapsulates any shopping cart items?
A. Mage_Checkout_Model_Cart
B. Mage_Sales_Model_Quote
C. Mage_Sales_Model_Quote_Address<type=shipping>
D. Mage_Sales_Model_Quote_Address<type=billing>
Which object never encapsulates any shopping cart items?
A. Mage_Checkout_Model_Cart
B. Mage_Sales_Model_Quote
C. Mage_Sales_Model_Quote_Address<type=shipping>
D. Mage_Sales_Model_Quote_Address<type=billing>