Treasury bills are bought and sold in the

Treasury bills are bought and sold in the Money Market. The Money Market is a financial market where short-term financial instruments such as treasury bills, commercial papers, and certificates of deposit are traded. It is also called the capital-short-term market, and it provides a platform for businesses, financial institutions, and governments to borrow or lend money for a short period, usually less than a year. Treasury bills, also known as T-bills, are short-term debt securities issued by governments to finance their budget deficits. They are issued with maturities ranging from a few days to 52 weeks, and they are considered one of the safest investments since they are backed by the full faith and credit of the issuing government. In the Money Market, investors can buy and sell treasury bills at a discount to their face value. The difference between the purchase price and the face value represents the investor's return, which is also called the yield. Therefore, the correct option is "Money Market."