One Key Difference Between Government Activities and Private Transactions Is

One key difference between government activities and private transactions is that

A) government can enforce involuntary transactions, whereas private transactions are mostly voluntary.
B) government can produce only 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.