（单选题）
You are an Enterprise Architect in a large IT organization. Your organization has deployed applications on a variety of containers such as WLS， WebSphere， and JBoss. Why would you consider consolidating on a single type of container （instead of mix） ？ （）
A Guarantee of higher application performance and reliability if the transactions are flowing between instances of the same container type.
BEasier to build a Shared Services infrastructure that can provide best practices， tools and expertise around HA/Management.... with a single type of container than a mix of multiple types
C You’ll save on hardware costs with a homogenous environment
D It’s a necessary step in our move toward adopting SOA
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