explain why the federal deposit insurance corporation (fdic) and the securities
and exchange commission (sec) were so important in light of the causes of the great
depression.

The Federal Deposit Insurance Corporation (FDIC) was created in in 1933 and it was to protect bank depositors and ensure a level of trust in the American banking system, during the Great Depression.

The Exchange Commission (SEC) was created in 1934 and the goal was to  to help investors feel comfortable to put money back into the stock market.

Both were important to create confidence in american people, and to create the possibility to  get out of the Great Depression.

b. ensure mutual protection from communism.

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i dont know the answer sorry but if i knew it i would of told you