Choose the Answer Which Best Rewords the Italicized Portion

Multiple Choice

Choose the answer which best rewords the italicized portion. If you think the original wording is best, choose option A.
Along with gold, silver, and platinum, palladium is a precious metal owned and traded by investors.

A) palladium is a precious metal
B) palladium and they are precious metals.
C) palladium are a precious metal
D) palladium are precious metals