Which of the following propositions is/are compatible with new Keynesian economics?

Which of the following propositions is/are compatible with new Keynesian economics?

1. Continuous Market Clearing

2. The strong version of Say's Law

3. The weak version of Say's Law

4. Confusion by workers and firms of a change in the general price level with a change in their own relative wage and product prices

5. Perfectly flexible prices and wages