Before leaving for the day, the delivery trucks are loaded with packages. How many ways can 120 unique packages be loaded inte- 10 delivery trucks where some trucks may have no packages? The delivery truck driver union is concerned that the workload is unequal. How many ways can 120 identical packages be loaded into 10 delivery trucks where each truck must have at least 5 packages? O (129 9 ) O (79 9 ) O 10120 (120 10 )