Based on the passage, sacagawea dollars have disappeared because many people believe they are

The Sacagawea dollar refers to the dollar coin issued by the Government of the United States but not for common circulation. It is not very much popular because there is no demand for this in business. This is also known as the Golden Dollar. 

the correct answer is individualism and exchange. at this stage, children begin to question the rules, because they can see that there is more than one side to them. different individuals have different viewpoints. they won't be able to reach this stage because of ignorance, a lack of ethics or personal biases. that is because people with that characteristiscs are not able to distinguish what is good or what is bad and they can't pursue their individual interests.

the consumer demand because the members have to be aware if people are going to buy what they want to sell in this case either energy drinks or a car wash.