Which of the following suits to assign a LCI result to only one category of environmental impact

A、TheLCIresultbelongstoonetypeofenvironmentalimpact;
B、TheLCIresultbelongstomorethanonetypeofenvironmentalimpact;
C、TheLCAresultdoesnotcauseenvironmentalimpact;
D、TheLCAhasnorelationwiththeselectedtypeofenvironmentalimpact