The microscope in cell studies — practice question

This photomicrograph shows a plant cell. The cell measures $25\,\mu\text{m}$ across from X to Y. What magnification does the photomicrograph have?

• A$2.0 \times 10^1$
• B$2.0 \times 10^2$
• C$2.0 \times 10^3$
• D$2.0 \times 10^4$