Assuming there are no bias or errors, why can an LCA on the same product or system, but conducted by different groups, give different results? (Choose the best available alternative) a. Because the LCAs were done for different places. O b. Because the LCAs used different databases. . Because the LCAs used different assumptions. O d. Because the LCAs chose a different system boundary. O e. All of the above. Of None of the above. How to identify bias in an LCA study? 1. By checking the functional unit 2. By checking if there is any conflict of interest 3. By checking who funded the study 4. By checking if the practitioners used mid or endpoint impact categories Select the correct answer: O a 1 and 2 O b. 2,3 and 4 Oc 2 and 3 O d. 1 and 3