To convert 35 pounds to kilograms using the ratio \(1 \text{ pound} \approx 0.45 \text{ kilograms}\), you can use the following calculation:
\[ 35 \text{ pounds} \times 0.45 \text{ kilograms/pound} = 15.75 \text{ kilograms} \]
The correct answer is 15.75 kilograms.