The ranking of regions from high to low life quality is: O C, A, D,B since these regions show a gradation from highest to lowest in the indices of quality of life.
The quality of life is a measure how comfortable life is for individuals and how the living environmental conditions of a place which can contribute to either the prolonging or reduction of the lifespan of individuals.
The indexes for measuring quality of life include:
Based on the indices of quality of life and the data given, the ranking of regions from high to low life quality is: O C, A, D,B.
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