Final answer:
A Gender-related Development Index of 0.8 indicates significant disparities between men and women in income, literacy, education, and life expectancy, calling for efforts to enhance gender equality.
Explanation:
A Gender-related Development Index of 0.8 indicates that a large gap exists between the income, literacy, education, and life expectancy of men and women in that country. This score of 0.8 suggests disparities between genders in key areas of development, highlighting the need for improvement towards gender equality.
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