Given here are four sentences. The first sentence is in correct order, while the rest of the sentences are jumbled. Pick the option that gives their correct order.
A. A UN body today said that there is no threat to urban areas of India from locusts.
B. After that they will return to Rajasthan from where they originated.
C. In June and July swarms may reach the states of Bihar and Odisha.
D. However, their impact in big cities like Delhi may not be felt as swarms fly over urban areas without troubling humans.