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Read the passage given below and answer the questions: In old times we did not have any means to travel from place to place. People used to cover long distances on foot. There were no means to send messages. Sometimes pigeons were used to carry the messages. Then people started using animals for going from place to place like horse carriages and bullock carts. Now also animals are used to travel .Like camels in deserts and horses in hill areas. With advancement in technology trains, cars, buses, aero planes were invented for travelling from place to place. Sending a message is also very easy now. We can send and receive messages through phones and computers. We can also talk to a person on phone. All these inventions have made our travelling and communication very easy.    Which animal is used to travel in deserts?

A) bogs                            

B) Camels        

C) Horses                        

D) None of these