Sound — practice question

What is the approximate hearing range of a healthy human ear?

• A$2.0\,\text{Hz}$ to $2.0\,\text{kHz}$
• B$2.0\,\text{Hz}$ to $20\,\text{kHz}$
• C$20\,\text{Hz}$ to $2.0\,\text{kHz}$
• D$20\,\text{Hz}$ to $20\,\text{kHz}$