Here's a problem to solve: A microscope magnifies an object with 50x magnification. How long is the object if the image appears to be 0.5 cm long?

Among the 4 following options, which is the correct answer?

- A: 100 cm
 
- B: 25 cm
 
- C: 2.5 cm
 
- D: 0.01 cm
 