Which of the following are elements of a CPA firm's quality control that should be considered in establishing its quality control policies and procedures? 
Definitions:
Economic Conditions
The state of a country's economy at a given time, influenced by factors such as GDP, unemployment rates, and inflation.
Liquidity
A company’s ability to convert assets into cash.
Straight-Line Depreciation
A method of calculating the depreciation of an asset which spreads the cost evenly over its estimated useful life.
Useful Life
An estimate of the duration over which an asset is expected to be economically viable and operational in a business.
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