Assume you added a product with custom options to the shopping cart. Where will the data for the custom
options be stored persistently?

A.
in the sales_flat_quote table, as a serialized string in a text field

B.
in the session, as a serialized array

C.
in a separate table, sales_flat_quote_item_option

D.
Magento doesn’t store persistent data about custom options; only the new price and new SKU are stored.