Here's a problem to solve: An escalator at a shopping mall is 10 m long and moves at a constant speed of 0.5 m/s. If Jose steps onto the escalator at the bottom while it is moving, how long will it take him to travel the 10 m?

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

- A: 5 s
 
- B: 10 s
 
- C: 15 s
 
- D: 20 s
 