If we are writing a formal letter, then the letter should contain:
- Proper greetings/salutations
- Reason for writing
- Two addresses
- Use of formal language etc.
<h3>What is a Letter Writing?</h3>
This refers to the use of letters to convey thoughts or feelings to someone who stays far away.
The two kinds of letter writing includes a formal letter, semi-formal letter and informal letter.
However, the formal letter must contain a proper greetings/salutations, Reason for writing, Two addresses, formal language.
Therefore, the Option A is correct.
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I believe the answer is: A.Smith knew that the invisible hand of the market was not concerned with the health of the laborer.
The power of invisible hand in the market only care about the power of supply and demand which would determine who will obtain the most wealth. Even if the process could disregard the wellness of many people, as long as the demand is met, consumers wouldn't put too much thought on the laborers.
archeologist they study human history hope this helps:)