When Are Costs Valid for Analysis

Multiple Choice

When are costs valid for analysis?

A) When costs reach a level above the relevant range,they are considered appropriate for analysis.
B) When linear estimates of an economist's curvilinear cost function are within the relevant range,they are valid for analysis.
C) When costs reach a level below the relevant range,they are considered appropriate for analysis.
D) When the nonlinear relevant range is ignored only those costs outside this range may be considered for analysis.