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The following is a list of accounting principles and assumptions. a. full disclosure b. historical cost c. revenue recognition d. conservatism e. monetary unit assumption f. matching principle g. period of time Indicate which item (or items) on the list was (were) violated in each description by placing the appropriate letter(s) in the space provided. 1. The company signs a contract to produce four machines according to the customer's specifications. On the date of the contract, the customer pays one half of the total contract price, and the company records the cash receipt as a sale. The machines will be manufactured and delivered during the next year. 2. The company delayed issuing its annual financial statements in order to include a large sale expected early in the next year. 3. The market value of the company's inventory declined sharply. The president, optimistically predicting a rise in value, insisted that the inventory be reported at its historical cost. 4. The market value of the company's large inventory rose sharply. The inventory was reported on the balance sheet at current market value. Although the company can estimate its uncollectible accounts receivable, it does not recognize the bad debts expense until it determines that an account receivable is uncollectible