Which of the following statements about ERP systems is BEST?

A) Recent studies have shown that the most successful ERP implementations use standardized systems.
B) ERP systems written in XML require complete replacements of a company's legacy systems.
C) A company must adapt their ERP system to their existing processes in order for all employees to gain a benefit from the new system.
D) An ERP system requires a regular synchronization of all of the module databases, which is usually accomplished automatically when the business is not conducting business.

A