Task: Instance Class Understanding (ontology: Business_Finance/Financial_Industry_Business_Ontology)

Which of the following classes does 'day-count convention 30/360 US' belong to as one valid explicit type? Context: day-count convention that uses 30 days in a month and 360 days in a year for calculating interest payments

A. day-count convention
B. arithmetic mean
C. dispersion
D. median absolute deviation

Answer: day-count convention