The correct answer is letter (A)
Explanation: This is the Law of Supply and Demand, is the relation of the sellers and the buyers that can affect the price, if a product has a good selling it may the price decrease, if the product has a low selling make the price increase.
Law of Supply and Demand is responsible for balance of a economy, it can make increase or decrease prices in various ways.
As has been the case historically, the most densely populated parts of the United States are east of the Mississippi River. Rings of decreasing population density radiate out from the major urban centers of New York, Philadelphia, and Washington along the East Coast.
Answer: FIELD STUDY.
Explanation: Field study can be defined as collection of raw data outside a laboratory, library, or workplace setting that involves observation and interviewing. The major characteristic of a field study is that it is done outside where practical firsthand experiences can be gotten.
The percentage of people who develop alcohol dependence some time in life if they start drinking after 21 is 9%.
<h3>Why is it recommended to only drink after 21?</h3>
Of the people who begin to drink earlier than 21, more than 30% of them will develop alcohol dependence at some point in their lives.
Those who start drinking after 21 however, will have more control which is shown by only 9% of them developing alcohol dependence later in life.
Find out more on alcohol dependence at brainly.com/question/5851849
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