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Directions: In the following questions read the passages carefully and choose the best answer to each question out of the four alternatives. "My God, it speaks" uttered the Emperor of Brazil and the receiver of the Telephone slipped from his hand and banged aground. At the other end Alexander Graham Bell was still on line. This incident goes back to 1876 when at an exhibition in Philadelphia (USA), Alexander Graham Bell was giving a demonstration of his new invention. This strange instrument known as Telephone was to revolutionize life in the years to come. Bell was born at Edinborough, Scotland. He was a teacher and, was dedicated to the noble cause of teaching the deaf and the dumb. Due to a severe illness, Bell was sent to Canada in 1870, where too he got engaged in helping the dumb-deaf to hear and speak. Thereafter, he shifted to the USA but continued with his work by opening a school for deaf and dumb. Bell was fond of scientific inventions and was ever engaged in making some machines in his spare time. While at Boston, he tried to communicate through metal wire. His companion in this work was Watson. One day while experimenting with his instrument, Bell spoke to Watson standing at a distance. Watson was taken by a pleasant surprise as he had heard Bell clearly through his instrument. The instrument was a success and Bell patented it, Graham Bell had some sterling qualities of head and heart. Apart from being an artist, he was a kind human being, ready to help the needy. He established an institution for the deaf and dumb children. He died in 1922 in Canada. The entire northern America paid him a tribute by hanging up their telephones for a while during his funeral.

Bell had gone to Canada in 1870 for

A) treating a patient who was seriously ill

B) helping the deaf and dumb children to hear and speak

C) undergoing medical treatment for himself

D) devoting his full time to his invention