You are given these cash flows for an investment project (the time 0 cash flow is missing):
0: ______
1: +$50
2: +$60
3: +$70
4: +$80
5: +$90
6: +$100
If the payback period is between 4 and 5 years the time 0 cash flow could be _____.
a) -$385
b) -$275
c) -$450
d) -$175