A steering committee has been advised by the IT project management office that individual business units are building systems components that could be leveraged by other business units. Instead, identical components are being duplicated across the enterprise. Which of the following committee directives would be the BEST way to reduce the likelihood of this duplication?

A. Implement stage gate reviews to assess systems.
B. Establish an enterprise architecture.
C. Perform an assessment of change management processes.
D. Review IT system release management practices.