What Is the Difference Between Lewin's Models and Kotter's Model

What is the difference between Lewin's models and Kotter's model?

A) Kotter looked at strategic change and Lewin looked at change in general
B) Lewin focused on psychological and cultural aspects of change and Kotter focused on applying managed change in organizations
C) Lewin proposed models that are easy for untrained managers to follow unlike Kotter's more complex model
D) Kotter's model results in strategy but Lewin's models don't