Answer :
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The correct answer to the question is:
B) the element symbol
Explanation:
1. In chemistry, each element on the periodic table is represented by a unique symbol. These symbols are often derived from the element's name in English, Latin, or another language.
2. "Au" is the symbol for the element gold. The symbol "Au" comes from the Latin word for gold, which is "aurum."
3. Therefore, when scientists see the letters "Au," they know it represents the element gold based on the periodic table's system of element symbols.
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