Fill in the blank (_) in the following sentence from the following choices.
Sentence: The business man prefers to travel by train and not by car. This is due to him liking the calmness of the _ .

Choice 1: The business man prefers to travel by train and not by car. This is due to him liking the calmness of the train .
Choice 2: The business man prefers to travel by train and not by car. This is due to him liking the calmness of the car .
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
1.