Which of the Following Is True

Which of the following is true?

A) Economists are fairly certain that globalization leads to an increased standard of living.
B) During the 1990s, the annual percentage change in output per person was negative in globalized developing countries, but positive in less globablized countries.
C) When it comes to globalization it is generally easier to see the benefits than to see the costs.
D) The benefits of globalization are more visible than the costs, since they tend to be concentrated on a relatively smaller group of people.