Comparing Great Britain and Australia in terms of industrial relations systems, one would note that:

A. Great Britain historically followed a voluntary approach to labor relations, while Australia relied more on compulsory arbitration.

B. Great Britain historically followed a voluntary approach to labor relations, while Australia relied more on active engagement in the political process.

C. Great Britain historically followed a more regulated approach to labor relations, while Australia relied more on welfare and education agendas.

D. Great Britain and Australia have virtually identical systems because Australia's system derived wholly from that of Britain.