Use Excel for this question: Using a 10% discount rate, what is the profitability index (PI) for the following cash flow? Time 0: -$14,000 Time 1: $2,000 Time 2: $2,900 Time 3: $3,000 Time 4: $4,200 Time 5: $4,900 Time 6: $5,100 O 1.09 O 0.89 O 1.89 O 1.47 K