Read the following passage and answer the questions.
Passage:
In spite of rigorous precautions against accidents, many people are injured every year in factories and elsewhere. In addition, some people are born with physical disabilities. They are either blind or deaf or in some way deformed form birth. Up to quite recent times, little planned action was taken to fit handicapped people for employment. A number of charitable organizations tried to help them in cases of hardship; but few seriously held the idea that these people might still have abilities in other directions. Only during the last few decades has society slowly come to acknowledge its responsibilities and to recognize that handicapped people can be trained to play a useful part in economic as well as social life. The $$2^{nd}$$ world war gave impetus to this. During the 1939-45 war, pressure of resources of labour compelled all fighting nations to call on the services of handicapped people for tasks adapted to and within the limits of their capacities. A man might have lost the use of his legs, but still be able to use his hands with skill. Another person might have lost his sight, but still be capable of training in ways in which his other senses could be employed effectively in furtherance of the war effort. In recent years, scientific inventions and discoveries have lessened the disabilities of deafness, some form of paralysis and other physical handicap. Scientists working in association with engineers have devised methods by which handicapped can take up work again, thanks to the inventions of mechanical limbs, the improvements of hearing aids and so on.