The tax concept and economic concept of income are in agreement on which of the following:
a. rent income for 2020 collected in 2019 is income for 2019.
b. the increase in value of assets held for the entire year should be included in income for the year.
c. the fair rental value of an owner-occupied home should be included in income.
d. all of these choices are correct.

1) the stages a new product goes through from beginning to end, i.e., the stages that a product passes through from introduction through growth, maturity, and decline. 2) the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

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