please can you answer the Question text with explanation for chosen the number ?

XXX Company has $23,500,000 to invest and wishes to evaluate the following three projects

Years	X ($)	Y ($)	Z ($)
0	(9,000,000)	(10,000,000)	(3,500,000)
1	4,500,000	5,500,000	3,500,000
2	4,500,000		5,500,000
3	4,500,000	4,500,000	6,000,000
4	4,500,000	4,500,000
cost of capital	12%	12%	12%

The pay pack period for project Z is --------- YEARS

Select one:

A. 1

B. 2

C. 3

D. 4