Which of the following is a barrier to the integration of separate organizations in the supply chain?

$($I$)$ conflicting objectives of the companies in the chain

$($II$)$ different capacity levels of the companies in the chain

$($III$)$ reluctance of the organizations in the chain to allow other organizations access to their data

Multiple Choice

I only

I and II

II and III

I and III

I, II$,$ and III