The West Rail Line () is one of the MTR lines in Hong Kong, indicated by the colour dark magenta. It was formerly known as the KCR West Rail ( ). The line connects Hung Hom Station in Kowloon and Tuen Mun Station in Tuen Mun, 35.7km away, in 37 minutes. The railway runs through the cities of Kowloon, Castle Peak and Tsuen Wan.
Can we infer the following?
The West Rail Line travels at an average speed of about 57.9 kph.

Select from:
a). Yes.
b). It's impossible to say.
c). No.
The answer is:
a).