Which of the Following Describes the Highest Degree of Integration

Which of the following describes the highest degree of integration

A) Information from one system is rekeyed into another system .
B) Information from one system is downloaded into a generic format and then uploaded into another system.
C) Information is captured and processed in a best of breed ERP software implementation.
D) Information is captured and processed by a uniform ERP software package.
E) Each of the above describes an equivalent degree of integration.