The correct answer is D.
AmeriCorps is a federal program engaging adults in public community work. Non-profit community organisations offer programs in specific areas of help, such as education, public safety, health care and environmental protection.
This program was established in 1994 and has expanded overtime, with around 80.000 participants annually. The participants receive low financial compensation and cost-of-living allowances.
A, B and C are all international organizations focusing on international aid.