Social security contributions are part of:

A country has a comparative advantage if it can produce a good or service

A. at a higher opportunity cost than can other nations. B. at a lower opportunity cost than can other nations. C. by using less resources than other nations. D. that lies outside its production possibilities curve.

Assume that one of two possible outcomes will follow a decision. One outcome yields a $75 payoff and has a probability of 0.3; the other outcome has a $125 payoff and has a probability of 0.7. In this case the expected value is

A) $85. B) $60. C) $110. D) $35.