Which of the following is considered a form of money market debt?

Treasury bills are considered a form of money market debt because they are short-term government securities that are issued to the public with maturities ranging from a few days to one year. They are highly liquid and can be easily converted to cash, which is a key characteristic of money market instruments. These instruments typically offer a lower return compared to long-term investments, as they carry less risk due to their short maturity and the backing of the government.

In contrast, real estate investments represent tangible assets rather than debt instruments and involve a longer-term commitment. Long-term bonds, while they are debt securities, do not fall under the money market category because they typically have maturities that exceed one year, thus making them part of the capital market. Equity shares, being part of ownership in a company, do not represent debt at all and are classified as equity instruments. Therefore, among the given choices, Treasury bills fit the definition of money market debt perfectly.