The correct answer is: A. system accumulation
System accumulation is the process of collecting cost data according to an accounting system in an organized way. This data can then be used to track costs, identify trends, and make decisions about how to improve efficiency.
B. accumulated data is not the correct answer because it does not specify that the data is collected according to an accounting system.
C. cost accumulation is not the correct answer because it does not specify that the data is collected in an organized way.
D. organized accumulation is not the correct answer because it does not specify that the data is collected according to an accounting system.