A woman is seated in a car. A rear-view plane mirror $0.5\ \text{m}$ is positioned in front of her. A bus is $7.5\ \text{m}$ behind the driver. She observes the bus’s image in the mirror. How far away is the image from her?
- A$1.0\ \text{m}$
- B$7.5\ \text{m}$
- C$8.0\ \text{m}$
- D$8.5\ \text{m}$