What was one effect of the great depression?

So i need to know the answer to thisi

Which statement describes a primary role of political parties in citizens engage with the u. s. government? o a.) funding citizens' trips to washington, d. c.. o b.) motivating citizens to take action on political issues. o c.) encouraging citizens to work with members of other parties to create change. o d.) polling citizens to assess their opinions. answer is b.) motivating citizens to take action on political issues.

The first time that unmanned underwater "gliders" were used by ocean scientists to respond to an oil spill was after the