C.
The stock market is associated with the highest investment risks. When investing in a stock you are giving money to the company for a small portion of their business. When they loose money, you loose money and when they gain money, you gain money meaning that if they have a large amount of loss you will be loosing a lump-some of money.
This style of music is called Impressionism.
It's unusual because for one it's a pretty long title, and for two, it's uses some very strong imagery. But yes it was seen in the poem, the poem was exactly what the title described.