The answer is to this question is Coal
The best way to measure public opinion is through opinion polls - B
With opinion polls you get an idea what is the general idea about a certain topic from the public, as you usually get a high enough sample to deduce the relevant information.
To answer your second question I would say it is either B or C as being a sole proprietor usually makes you subjec to being a small business or you're forced to use factors of production less efficiently.
Answer:
Different countries use different currencies.
Explanation:
Nationalism is taking pride in one's own nation. So put country in the blank my friend.
Do we drop the atomic bombs on the Japanese, or lead a offensive on the beachs of japan. (He later chose to drop the atom bombs, to save american lives.)
