Final answer:
The false statement is that the high/low method is the most accurate method of estimating fixed and variable cost.
Step-by-step explanation:
The false statement among the options is A. The high/low method is the most accurate method of estimating fixed and variable cost.
The high/low method is a cost estimation technique that uses the highest and lowest observed costs to estimate fixed and variable costs. While it can be a quick and simple method, it is not the most accurate method. Regression analysis, on the other hand, is a more precise technique for estimating costs as it uses the relationship between the independent and dependent variables to determine the best-fit line.