Order the following continual service improvement (CSI) implementation steps into the correct
sequence in alignment with the plan, Do, Check, Act (PDCA) model.
1/ Allocate roles and responsibilities to work on CSI initiatives.
2/ Measure and review that the CSI plan is executed and its objectives are being achieved.
3/ Identify the scope, objectives and requirements for CSI.
4/ Decision on implementation of further enhancement.

A.
3-1-2-4

B.
3-4-2-1

C.
1-3-2-4

D.
2-3-4-1