Which three descriptors follow best practice for possible configuration metadata are needed to enable a flow?

A new payment type for the Checkout flow has been implemented.

Which three descriptors follow best practice for possible configuration metadata are needed to enable a flow? (3 answers)
A . *.pay
B . Cart
C . Checkout
D . *.Edit
E . *.New

Answer: A,D,E

Explanation:

To enable a new payment type for the Checkout flow, three possible configuration metadata descriptors are needed:

*.pay: This descriptor defines the payment type name, label, description, icon, and handler class. For example, CO.pmts.CreditCard.pay defines the payment type for credit card payments.

*.Edit: This descriptor defines the Visualforce page that is used to edit or update an existing payment of this type. For example, CO.pmts.CreditCard.Edit defines the page that allows editing a credit card payment.

*.New: This descriptor defines the Visualforce page that is used to create a new payment of this type. For example, CO.pmts.CreditCard.New defines the page that allows creating a new credit card payment.

Reference: B2B Commerce and D2C Commerce Developer Guide, Payment Configuration Settings