Answer:
Civilian Conservation Corps (CCC), (1933–42), one of the earliest New Deal programs, established to relieve unemployment during the Great Depression by providing national conservation work primarily for young unmarried men.
The political cause for early struggles for survival. Since Jamestown was England's first corporate colony which is a Joint-stock company, conflict erupted between the settlers and natives causing trade to stop. The economic cause for early struggles for survival is gold-seeking adventurers refused to hunt/farm that lead to hunger and starvation which is a pertinent issue and also trade stopped and settlers got hungry.
It is B. New European medicines made surviving harsh colonial conditions possible.
