What types of financial products are commonly traded in secondary markets?

The correct choice highlights that company shares and bonds are commonly traded in secondary markets. Secondary markets are platforms where previously issued securities are bought and sold among investors, rather than directly from the issuing company. When a company issues shares or bonds, they initially sell these securities in the primary market. Once investors acquire these securities, they may trade them in the secondary market, which provides liquidity and allows for price discovery based on supply and demand.

Company shares represent ownership in a firm and can fluctuate in value as the company's performance changes. Bonds, which represent debt obligations of companies or governments, also circulate in these markets, allowing investors to buy and sell them based on their interest rates and maturity dates. This trading is crucial for maintaining market efficiency and providing investors with the opportunity to adjust their portfolios.

The other listed options contain financial products that are less commonly associated with secondary markets or do not typically represent securities in the manner that shares and bonds do. For instance, while foreign currencies and commodities can be traded in secondary markets, they are often classified under distinct trading systems such as forex and commodity markets rather than traditional secondary capital markets where shares and bonds are primarily exchanged.