I received the comments on your manuscript by three reviewers, their general suggestions are rejected (reviewer 1), major revision (reviewer 2) and minor revision (reviewer 3). The key issue for reviewer 1 is the novelty of the manuscript. The reviewer thought the study issues have been addressed in previous literature. The issues concerned by reviewer 2 included the MC realization number. I also concern this issue since in general 2000 realizations are needed for MC method to reach stable results. The reviewer 2 also thought your conclusions are not general, some conclusions are not convincible based on your results. The reviewer 3 is general positive to the manuscript, but also point out the novelty problem of the manuscript.

The authors' replies to the comments are generally reasonable, some are convincible. Therefore, I suggest major revisions to the manuscript. The authors should do a major revision to their manuscript according to the comments/suggestions made by the three reviewers. The revised manuscript will be further reviewed by the three reviewers.

Please fix the trivial problems mentioned by the reviewers.