To take full advantage of earning compound interest income you should start saving

The phrase "decreasing marginal benefit" means that

A) the more you consume of the product, the less total benefit you derive. B) the marginal cost will be increasing as you consume more of a good. C) each additional unit of a good you consume gives you less additional benefit than the previous unit. D) Both answers A and B are correct. E) Both answers A and C are correct.

Which of the following statements is correct?

i. As the economy grows, the opportunity costs of economic growth decrease. ii. Economic growth has no opportunity cost. iii. The opportunity cost of economic growth is current consumption forgone. A) i only B) ii only C) iii only D) i and iii E) i and ii