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

Which of the following classes does 'graduated payment adjustable' belong to as one valid explicit type? Context: a loan for which there are periodic payments/rate changes with additional specified principal and interest changes as documented in the Security Instruments.

A. cash-out status
B. manufactured home legal classification
C. amortization type
D. ownership interest

Answer: amortization type