An alpaca rancher would like to show how the size of her herd at the end of year 10 depends on the abduction rate and the number of annual acquisitions. She would like, for example, to have cell I7 give the number of year 10 alpaca if she acquires one animal per year and loses 10% each year. Using the information presented in the spreadsheet below, what would be the row input cell for a two-way data table?

• C1

• $C1

• C$1

• $C$1

1 Abduction Rate 2 Acquisitons per Year 3 Starting Size of Herd 4 10% 4 80 Acquisitions 5 6 7 5% 10% 15% 20% Year 1 2 3 4 5 1 NM Starting Herd Size 80 76 72 69 66 63 61 59 57 55 9 10 11 12 13 14 15 Ending Herd Size 76 72 69 66 63 61 59 57 55 53 4 5 7 8 9 10