The human ear is most sensitive to the sounds in what range?

1. 500 to 1500 Hz
2. 500 to 1500 s
3. 4000 to 5000 Hz
4. 5000 to 10000 s
5. 10000 to 20000 Hz
6. 2000 to 3000 s
7. 5000 to 10000 Hz
8. 2000 to 3000 Hz
9. 4000 to 5000 s
10. 100 to 250 Hz