An enterprise has an ongoing issue of corporate applications not delivering the expected benefits due to missing key functionality. As a result, many groups are using spreadsheets and databases instead of approved enterprise applications to store and manipulate information. Which of the following will BEST improve the success rate of future IT initiatives?

A. Engage the business user community in acceptance testing of acquired applications.
B. Prohibit the use of non-approved alternate software solutions.
C. Establish a process for risk and value management.
D. Engage stakeholders to identify and validate business requirements.