you need to do to disable ATG’s Out-of-the-Box behavior of persisting order change?

What do you need to do to disable ATG’s Out-of-the-Box behavior of persisting order change?

A.
Set /atg/commerce/order/OrderTools.persistOrders = false

B.
Set/atg/commerce/order/OrderManager.persistOrders=false

C.
Set /atg/commerce/ShoppingCart.persistOrders = false

D.
ATG does not allow you to modify this behavior.

Explanation:
Understanding the ShoppingCart Component
The ShoppingCart component is responsible for storing and managing a customer’s shopping
carts. It maintains the customer’s current shopping cart that is used during the purchase process,
and it stores any other shopping carts that have been persisted by that customer. These
shoppingcarts are represented as atg.commerce.order.Order objects in the ATG Commerce object
model, and represented as order items in the Order Repository.