The diagram illustrates a stage micrometer scale as seen through an eyepiece that contains a graticule. Each of the smaller divisions on the stage micrometer scale measures $0.1\ \text{mm}$. A slide of a plant cell is used instead of the stage micrometer scale. What is the length of the nucleus in the plant cell?
- A$0.8\ \text{mm}$
- B$8\ \mu\text{m}$
- C$25\ \mu\text{m}$
- D$200\ \mu\text{m}$