Which of these is an optional element of the LCIA phase
{"Image DocumentName": "Which of these is an optional element of the LCIA phase?", "Image ImageDescription": "Grouping. Characterization. Classification. None of the above.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}