Answer (D) is correct. Cash and short-term investments are crucial to a firm’s continuing success. Sufficient liquidity must be available to meet payments as they come due. At the same time, liquid assets are subject to significant control risk. Therefore, liquidity and safety are the primary concerns of the treasurer when dealing with highly liquid assets. Cash and short-term investments are held because of their ability to facilitate routine operations of the company. These assets are not held for purposes of achieving investment returns.