As proposed by Kurt Lewin, the force field analysis model?
a) can be used to help managers understand whether a change is needed
b) can be used to help managers understand whether a change is likely to be successful
c) can be used to help managers determine whether a change will be resisted
d) can be used to help managers understand whether a change is needed and whether a change will be resisted, but not whether a change is likely to be successful e) all of these.