You're answer would be A.
Answer:
1964
Explanation:
Mandela was originally arrested and imprisoned in 1962. He was sentenced to life in '64, even though he only ended up serving 27 years. MLKJ won the Peace Prize in 1964 as well.
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.
Well, if you look close enough there is proof look at the way that the continents are shaped and some fossils have been found in 2 places but on completely different continents.
