Question 3: Also referring to the production possibilities of producting iwatches versus Fitbits. a. Calculate the cost of increasing production of iwatches from 0 to 5 units, as measured in the amount of Fitbits that would need to be sacrificed. b. Calculate the cost of increasing production of iwatches from 5 to 25 units, as measured in the amount of Fitbits that would need to be sacrificed. c. Calculate the cost of increasing production of iwatches from 25 to 40 units, as measured in the amount of Fitbits that would need to be sacrificed. d. What happens to the opportunity cost as the production of iwatches increases