Task: Question Answering
Input (English): Problem: a car traveling at a certain constant speed takes 2 seconds longer to travel 1 kilometer than it would take to travel 1 kilometer at 450 kilometers per hour . at what speed , in kilometers per hour , is the car traveling ? 
Options: a ) 370 , b ) 365 , c ) 360 , d ) 380 , e ) 350
Output (English): c