The correct answer is option 2, Vande Bharat Express. Vande Bharat Express is the name given by Indian Railways to the indigenously manufactured Train 18.

Option 1, Humsafar Express, is not the correct answer. Humsafar Express is a different train service introduced by Indian Railways, but it is not the name of Train 18.

Option 3, Ananya Express, is not the correct answer. Ananya Express is not a known train service in India.

Option 4, Gatimaan Express, is not the correct answer. Gatimaan Express is also a different train service introduced by Indian Railways, but it is not the name of Train 18.

It is important to note that the name Vande Bharat Express is significant as it represents the indigenous nature of the train and its connection to the pride and progress of India.