The Symbol for Gold from the Periodic Table of the Elements

The symbol for gold from the periodic table of the elements is Au.Pure gold consists entirely of this element.How long could you repeatedly cut a kilogram of pure gold in half until the portion remaining,if split,would then no longer display the chemical properties of gold?

A) You could do this until you had only a single atom of gold remaining.
B) You could do this until you had only a single molecule of gold remaining.
C) You could do this until you had only a single subatomic particle remaining.
D) You could do this until you had only a single gram of gold remaining.