One source of a musky odor in perfumes is civetone, a compound extracted from the scent gland of the civet cat. Identify the functional group circled. 
Definitions:
Levy Taxes
The act of imposing or collecting taxes by governmental authority on citizens, income, businesses, goods, and other transactions to fund public services and government spending.
Second Continental Congress
A convention of delegates from the Thirteen Colonies that started meeting in the spring of 1775 in Philadelphia, leading to the adoption of the Declaration of Independence in 1776.
American Independence
The state of being free from British rule, officially declared on July 4, 1776, by the Thirteen Colonies.
Robert Livingston
An American lawyer, politician, and diplomat who served as one of the Founding Fathers of the United States, notable for helping to draft the Declaration of Independence.
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