The Department of the Interior's National Park Service (NPS) wants to acquire 25 helicopters. Their primary purpose will be to spot fires and to be used in fire suppression. The NPS has asked that the helicopters be modified as follows -- While the manufactured version is painted white, the NPS wants the choppers to stripped so that they can be seen in all weather. Customers typically can request different colors for helicoptersusually a single color though. --The helicopters are capable of carrying cargo weighing up to 1000 pounds. NPS needs the choppers to carry suppression cargos of at least 1 tone(2000 pounds). Can these helicopters be purchased as commercial items? Group of answer choices a) Yes b) Only if the painting modification is eliminated c) Only if the cargo capacity requirement is eliminated d) Only if both modifications are eliminated