Concept:Capital market operators handle long-term financial instruments used for investment purposes.Explanation:The capital market deals in medium-term and long-term loans, not short-term funds.Short-term loan markets are called money markets.Treasury bills are short-term money market instruments.Sales and purchases of capital equipment do not represent financial market operations.Hence, capital market operators deal in the supply of and demand for long-term loans for investment.Answer:B. supply of and demand for long-term loans for investment.