The passenger said to the clerk, ” When is the next train to Hyderabad?”

A. The passenger asked the clerk when the next train to Hyderabad was.
B. The passenger enquired the clerk that when the next train was to Hyderabad.
C. The passenger enquired the clerk that when was the next train to Hyderabad.
D. The passenger enquired the clerk when was the next train to Hyderabad.