In regard to moving an application program from the test environment to the production environment, the BEST control would be to have the: 
A、application programmer copy the source program and compiled object module to the production libraries. 
B、application programmer copy the source program to the production libraries and then have the production control group compile the program. 
C、production control group compile the object module to the production libraries using the source program in the test environment. 
D、production control group copy the source program to the production libraries and then compile the program.