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