In What Way Might the Transporting of British Prisoners to Australia

In what way might the transporting of British prisoners to Australia be considered an Enlightenment concept?

A) Once their terms of incarceration were completed,all residents in Australia were to have equal rights to life,liberty,and property.
B) The costs of incarceration in Britain would go down according to free market principles.
C) Prisoners were to be removed from an environment that did not suit them and sent to a new one where they could reform.
D) Transportation was a more enlightened form of punishment than hanging.