单项选择题

A.Keep environmental data in the global settings of domain and the application can read it from the domain where it runs.
B.Keep environmental data in Deployment Plan XML files. It allows you to change parameters in the deployment descriptor without opening the archive file.
C.Keep environmental data in the database because it is the most effective way of parametrizing the environment.  
D.Keep archive in exploded format so the customer does not have to open the archive files.
E.Eliminate all environmental settings from the application. There should not to be any environmental settings in the application.