In Graham and Colleagues' (2011)study,students Record on a Website How

In Graham and colleagues' (2011) study,students record on a website how many miles they had saved through not driving.The take-home message from this study is that if you want people to actually change their behaviour to conserve energy,then

A) intrinsic motivation is extremely important.
B) giving people feedback about their personal and environmental savings is extremely important.
C) you have to make sure there is some competition with others involved.
D) making them aware of their own shortcomings through hypocrisy induction is essential.
E) you have to be prepared to provide concrete rewards for conservation behaviours.