4- Tata Group has many subsidiaries. The managers of two subsidiaries, brahim and Maria, come together to make a deal on the price of decorative lamps. brahim can purchase the lamps from another company at $89. Maria can sell the lamps at $70 and the variable cost of the lamp is $46. a.) If Maria's company has excess capacity, what might be the deal price? b.) If Maria's company doesn't have excess capacity, what might be the deal price? c.) If brahim wants to buy 3000 lamps and wants some special additions to the lamp which cause $4 increase in cost. Maria needs to forgo the sales of 4000 regular lamps if she accepts this offer. What is the minimum transfer price for Maria?