I believe the answer is: D. The space race
In the 1950s, United states and the soviet union are involved in a cold war due to the difference in their ideological system.
To prove to the rest of the world which country have the superior technological advancement, both countries involved in a space race to be the first one that place a man outside the planet earth.
To obtain the fund needed for the researches, governments in both countries obtain a loan from another countries and increase the national debt.
The best topic to reference in the report on social programs and their influence on the national debt is C. The Great Society. Launched by Lyndon B. Johnson in the 1960s, it aimed to eliminate poverty and significantly expanded federal spending, impacting the national debt. Key initiatives included Medicare, Medicaid, and other social programs that exemplify the relationship between social policy and fiscal responsibility.
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