Which model has the disadvantage of high project cost due to the creation of several prototypes? The model has the disadvantage of high project cost due to creation several prototypes.

Could you find out how im still getting an 83 percent on this in edhesive a = input("enter an animal: ") s = input ("enter a sound: ") e = "e-i-e-i-o" print ("old macdonald had a farm, " + e) print ("and on his farm he had a " + a + "," + e) print ("with a " + s + "-" + s + " here and a " + s + "-" + s + " there") print ("here a " + s+ " there a " + s) print ("everywhere a " + s + "-" + s ) print ("old macdonald had a farm, " + e)