How many carats does pure gold have?

Pure gold is defined as having a composition that is 100% gold. In the context of the carat system, which is used to measure the purity of gold, the highest possible purity is represented by 24 carats. Each carat is equivalent to 1/24th of the whole, meaning that 24 carats signifies that the entire material is gold without any other metals mixed in. This high level of purity in gold shows that it has not been alloyed with other metals, which is important in determining its quality, value, and properties. The other options represent lower purities of gold, indicating the presence of other metals in the alloy, which is why they do not represent pure gold.