Mike trades 6 vintage baseball cards for the Jake’s original Ty Cobb card. When Mike’s six cards had equivalent total market value with Jake’s Ty Cobb card, then this trade would show: (i) Unfair incentive. (ii) Demand price. (iii) Opportunity cost. (iv) Comparative benefit. (v) Differences in their subjective values for such cards.
Find out the right answer from the above options.