单选题The WebSphere Commerce Payments architecture includes a Payment Servlet and a Payment Engine. The Payment Engine is the ONLY component that：（）A writes payment information to the databaseB relays incoming HTTP requestsC writes payment information to the
题目
单选题
The WebSphere Commerce Payments architecture includes a Payment Servlet and a Payment Engine. The Payment Engine is the ONLY component that：（）
A
writes payment information to the database
B
relays incoming HTTP requests
C
writes payment information to the HTTP server
D
maps authenticated users to merchant roles