Table 2 shows the impacts for 1 liter gasoline and 1 liter bioethanol over their whole life cycle. Please rank the two options using the hierarchical ranking method based on local and global impacts. You need to show your hierarchical tree and brief justifications for your assigned weighting factors to each category and subcategories. The heating values of gasoline and bioethanol are 34 MJ/liter and 23.5 MJ/liter, respectively. Table 2. Impacts of 1 liter gasoline and 1 liter bioethanol. Impact category 1. carcinogens 2. Non-carcinogens 3. Respiratory inorganics 4. Respiratory organics 5. Aquatic ecotoxicity 6. terrestrial ecotoxicity 7. Terrestrial acid/nutri. 8. Aquatic acidification 9. Aquatic eutrophication 10. land occupation 11. Ozone layer depletion 12. Global warming 13. Non-renewable energy use 14. Mineral extraction Unit kg CH3Cl eq. kg CH3Cl eq. kg PM2.5 eq. kg CH_eq kg TEG water kg TEG soil kg SO eq kg SO eq kg PO4 P-lim ww m arable kg CFC-11 eq kg CO-eq. MJ primary MJ surplus Bioethanol 1.75E-03 5.66E-03 4.98E-03 1.26E-03 1.99E+01 1.21E+01 8.34E-02 1.13E-02 5.36E-05 1.49E+00 3.71E-08 4.16E-01 4.14E+00 4.65E-03 Gasoline 1.04E-01 5.92E-03 1.76E-03 1.87E-03 7.89E+01 1.99E+01 3.35E-02 6.77E-03 1.92E-04 3.47E-01 3.26E-07 2.38E+00 3.43E+01 3.57E-03 Additional information which may be needed: 1. GWP: CO = 1; CO = 1.9 2. Molecular weight, kg/kmol: C-12, H-1, O- 16 3. FV = PV (1+i)" PV: = OC*[(1+i)" -1] (i)(1+i)" FV - future value; PV - present value; OC - operating cost over each compounding period; i-interest rate for each compounding period; n - number of compounded periods.