问题：

[单选] You are creating a Windows Communication Foundation (WCF) service. You have the following requirements: Messages must be sent over TCP The service must support transactions. Messages must be encoded using a binary encoding Messages must be secured using Windows stream-based security.You need to implement a custom binding for the service. In which order should the binding stack be configured?（）

A . tcp Transport, windows Stream Security, transaction Flow, binary Message Encoding
B . transaction Flow, binary Message Encoding, windows Stream Security, tcp Transport
C . windows Stream Security, tcp Transport, binary Message Encoding, transaction Flow
D . binary Message Encoding, transaction Flow, tcp Transport, windows Stream Security