Every realist knows that the democratic way of life is at this moment being directly assailed in every part of the world—assailed either by arms, or by secret spreading of poisonous propaganda by those who seek to destroy unity and promote discord in nations that are still at peace. What is Roosevelt's central idea in this passage?
a) Democracy is being supported worldwide.
b) Democracy is under attack globally.
c) Democracy is flourishing in every part of the world.
d) Democracy is being strengthened by propaganda.