Cash equivalent refers to an investment held by an enterprise with a short term, strong liquidity, easy to convert into a known amount of cash, and a small risk of value changes. Although cash equivalents are not cash, the difference between their ability to pay and cash is not significant. For cash. According to the above definition, which of the following is cash equivalents? ['Company A purchases short-term bonds, which can be realized at any time when cash is needed.', 'In order to purchase a house later, Lao Li saved 100,000 current deposit.', 'Company B purchases tradable shares as a short-term investment, and the stock market is unstable.', '0,000 yuan time deposit used by enterprise C to purchase fixed assets.']