Which of the Following Correctly Represents the Sequence for Tooth

Which of the following correctly represents the sequence for tooth preparation before cementation of a post in an endodontically treated tooth?
1) Self-curing or dual-curing composite resin cement is applied to both the canal and the post.
2) A dentin primer is placed in the canal and air-dried to drive off any remaining water and the volatile solvents in the primer.
3) The prepared canal is etched with phosphoric acid,and then the acid is rinsed off.
4) Excess water is removed with a paper point.

A) 1,2,3,4
B) 1,2,4,3
C) 3,4,2,1
D) 4,3,1,2