In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[EX Q]: Problem: convert 500 miles into meters ? 
Options: a ) 784596 , b ) 845796 , c ) 804670 , d ) 784596 , e ) 864520
[EX A]: c

[EX Q]: Problem: a train 280 m long , running with a speed of 72 km / hr will pass a tree in 
Options: a ) 14 sec , b ) 15 sec , c ) 16 sec , d ) 20 sec , e ) none
[EX A]: a

[EX Q]: Problem: a train moves with a speed of 189 kmph . its speed in metres per second is 
Options: a ) 60.8 , b ) 18 , c ) 30 , d ) 52.5 , e ) none
[EX A]:
d