The correct answer is: A) Investment in human development.
Kerala’s development model emphasizes investment in human development, which includes education, healthcare, and social welfare. This has resulted in Kerala having some of the highest social indicators in India, such as high literacy rates, low infant mortality rates, and long life expectancies.
Option B, rapid industrialization, is not a key feature of Kerala’s development model. While Kerala does have some industries, they are not as developed as in other parts of India.
Option C, agricultural self-sufficiency, is also not a key feature of Kerala’s development model. Kerala does have some agriculture, but it is not as important to the economy as in other parts of India.
Option D, large-scale infrastructure projects, is also not a key feature of Kerala’s development model. While Kerala does have some infrastructure projects, they are not as large or as important to the economy as in other parts of India.
In conclusion, Kerala’s development model emphasizes investment in human development. This has resulted in Kerala having some of the highest social indicators in India.