rational, self-interested government officials seeking more funding for mass transit through higher taxes should consider
a. how to spend the funds for their own individual gain.
b. that taxpayers may prefer to commute in their own cars rather than depend on mass transit.
c. the fact that raising taxes is generally unpopular and may result in a potential loss in a future election.
d. that taxpayers may prefer to use mass transit to save on gas cost.

C. the fact that raising taxes is generally unpopular and may result in a potential loss in a future election

Explanation:

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the time from initial research and development to the time at which sales and support of the product to customers are withdrawn. 3) the period of time during which a product can be produced and marketed profitably.

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