The microscope in cell studies — practice question

The electron micrograph displays a type of virus at a magnification of $\times 60\,000$. What is the real length of the virus?

• A$1.1\,\text{nm}$
• B$11\,\text{nm}$
• C$110\,\text{nm}$
• D$1100\,\text{nm}$