Though Treasury bonds may have little default risk, what type of risk exists when current interest rates are low?

One key is difference between government activities and private transactions is that:

A. Government can enforce involuntary transactions, whereas private transactions are mostly voluntary B. Government can only produce services, whereas private producers can produce both goods and services C. Government does not run any production operations, whereas private firms have the main purpose of running production operations D. Government does not earn revenues from its activities, whereas private firms aim to earn revenues and profits

At which point is society employing some of its available technology but not all of it? (See Figure 1.1.)

A. A. B. B. C. C. D. D.