The correct answer is option 1, Jaipur. Longitude is a geographic coordinate that indicates the east-west position of a point on the Earth`s surface, measured in degrees. The western-most longitude is the longitude that is the farthest to the west compared to the other options. In this case, out of the given cities, Jaipur is the city that lies to the western-most longitude. It means that Jaipur is situated at a longitude that is the farthest towards the west when compared to Nagpur, Bhopal, and Hyderabad. This means that if you draw a line of longitude passing through each city, Jaipur would be the city closest to the left or the west when looking at a map.