Which of the following is/are not part of new Keynesian policies?

[1] A more flexible labour market where the power of labour is reduced.

[2] Flexible monetary and fiscal policy rules in order to anchor the economy.

[3] Monetary policy interventions to combat severe aggregate demand or supply shocks to the economy.

[4] Smoothing out the upswings and downswings of the business cycle.

[5] Inflation targeting.