A light microscope is being used to view two structures on a slide that are $200\,\text{nm}$ apart. What is the true separation between the two structures when the magnification is altered from $\times 40$ to $\times 400$?
- A$2\,\mu\text{m}$
- B$20\,\mu\text{m}$
- C$200\,\text{nm}$
- D$2000\,\text{nm}$