While enterprise resources planning $($ERP$)$ is a relatively new technology, it has grown and developed rapidly since the early $1990$s$.$ Which one of the following is the reason that has contributed to its rapid growth?

A$.$ The need to integrate supply chain partners.

B$.$ The extensive modifications to older systems made those old systems too expensive to maintain.

C$.$ The need for proper supply chain training.

D$.$ The need for organisations to compete with each other.