Problem: Gold Gold is a widely known metal, often used for making Jewelry. Pure gold is called 24 carat gold, but there is also 14 carat gold. Because gold is a soft metal, it is sometimes combined with another metal to hardenit, such as copper. Fourteen carat gold is named as such because 14 out of the 24 carats, approximately 60%, is gold and the remaining 10 carats, or 40%, is some other metal.
What is the primary purpose of the paragraph?
A. To compare
B. To recommend
C. To analyze
D. To inform