Answer:
B [Apex]
Explanation:
Many Americans took out large loans from banks to invest in the stock market. When the bank asked for the loans to be payed back immediately, many Americans could't pay them back, so they withdrew from the stock market all at once, which caused the stock market to crash.
Calligraphy is a form of art, more widely known for being a beautiful type of cursive writing
They hade to rewrite these articles because they were weak and had no power to the goverment
The name of the region that was conquered was loina :)