A field has an area of 5 acres5 \text{ acres}5 acres. Given 1 acre≈4047 m21 \text{ acre} \approx 4047 \text{ m}^21 acre≈4047 m2, what is the area in square kilometers?
0.020235 km20.020235 \text{ km}^20.020235 km2
20235 km220235 \text{ km}^220235 km2
2.0235 km22.0235 \text{ km}^22.0235 km2
0.20235 km20.20235 \text{ km}^20.20235 km2