C would be the answer!
-Hope this helps!
Answer:
Due to the effect that economies can often suffer from the "snowball" effect, the fact that two-thirds of the nation live below the poverty line of making less than $1 a day, Niger's low HDI is a direct result from poor healthcare, a meager economy, and a lack of centralized, nationalized infrastructure
Explanation:
He is famous for his domestic program Square Deal and set aside 150 millions acres for national parks.