Explain clearly

15. Two-part question: i) Based on the incremental B/C ratio, is the Alpha compactor better than the Gamma compactor? ii) Does your answer to part i) of this question coincide with your conclusion as to the better of the Alpha and Gamma compactors based on the NPW decision criterion? Answer options are a) Yes, Yes; b) Yes, No; c) No, Yes; d) No, No. 16. Two-part question: i) Based on the incremental B/C ratio, is the Beta compactor better than the Gamma compactor? ii) Does your answer to part i) of this question coincide with your conclusion as to the better of the Beta and Gamma compactors based on the AEW decision criterion? Answer options are a) Yes, Yes; b) Yes, No; c) No, Yes; d) No, No