QUESTION 15 Which one about Token valuation methods is incorrect? O A. The "Equation of Exchange" approach is applicable to determining the value of cryptocurrency exchanges ho OB. The "Cost-Based Method" is most applicable to tokens using proof-of-stake type of consensus mechanisms. O C. The "Relative Valuation Method" is most similar to the factor model. OD. The "Metcalfe's Law Approach" is based on the network effect (the large the user base, the higher the value)