human
Question: 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?

Choices:
A) 5 s
B) 10 s
C) 15 s
D) 20 s
gpt
The correct answer is 3: 20 s.