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80. A firm's functional currency should be a. selected on the basis of several economic factors including cash flow, sales price, and financing indicators. b. the currency of the foreign environment in which the firm primarily generates and expends cash. c. selected on the basis of cost-benefit analysis and ease of preparing consolidated financial statements. d. the currency of the parent organization as the firm operates as an extension of the parent's operations. 81. The functional currency of an entity is defined as the currency a. of the entity's parent company. b. of the primary country in which the entity is physically located. c. in which the books of record are maintained for all entity operations. d. of the primary economic environment in which the entity operates