What happened when the stock market crashed in october 1929?
most banks panicked and bought more stocks.
most investors panicked and sold all their stocks.
most investors calmly put their money into banks.
most banks calmly invested to the stock market.

What happened when the stock market crashed in October 1929?

Most banks panicked and bought more stocks.

Most investors panicked and sold all their stocks.

Most investors calmly put their money into banks.

Most banks calmly invested to help the stock market.

Explanation:

What happened due to the great fall of the stock market of 1929 was that the quotations collapsed due to a massive sale of shares by the Curb Exchange -now called American Stock Exchange- of the well-known firm Cities Service Co, which made Investors panic, and start selling all their stocks.

The answer is: Most investors panicked and sold all their stocks.

your answer is

to dominate europe

and i know for a fact it can't be the others

b) race riots in several cities