High poverty rates in Assam have a negative impact on HDI because they:

Limit access to basic necessities
Hinder educational attainment
Exacerbate health problems
All of the above

The correct answer is: All of the above.

Poverty is a major obstacle to human development. It limits access to basic necessities such as food, water, shelter, and healthcare. It also hinders educational attainment and exacerbates health problems.

Poverty can limit access to basic necessities in a number of ways. For example, poor people may not be able to afford nutritious food, clean water, or adequate housing. They may also not have access to healthcare, which can lead to preventable illnesses and deaths.

Poverty can also hinder educational attainment. Poor children are more likely to drop out of school or attend school irregularly. They may also not have access to quality education, which can limit their future opportunities.

Poverty can also exacerbate health problems. Poor people are more likely to suffer from malnutrition, infectious diseases, and chronic health conditions. They are also less likely to have access to quality healthcare, which can lead to poorer health outcomes.

In conclusion, poverty has a negative impact on human development in a number of ways. It limits access to basic necessities, hinders educational attainment, and exacerbates health problems.