The first sentence is the thesis.
For some time, Southern Brewers was the only coffee supplier in the market, therefore they had a monopoly over prices, is to say the company was controlling coffee prices. When new companies appeared on the market, the Southern Brews had to lower its prices in order to keep the competition and be in the business.
So, the answer is: competition made Southern Brewers lower its prices.
Not all of the people in one country should only have one religion, they meant to accept other people in the area to make the country more diverse and have a better foundation
I had read all about pearl harbor and the answer is C