Suppose company Sith AB must choose between two lightsaber production machines. Machine A costs less than machine B but will not last as long. The cash outflows from the two machines are shown here:

Machine	Date
	0 ()	1 ()	2 ()	3 ()
A	500	125	125
B	600	100	100	100

Machine A costs 500 and lasts 2 years. There will be maintenance expenses of 125 to be paid at the end of each of the 2 years. Machine B costs 600 and lasts 3 years. There will be maintenance expenses of 100 to be paid at the end of each of the 3 years. The market discount rate is 10%.

Which machine should be chosen and why? Please show all steps of your work.