No one knows exactlyhow many disabled people there are in the world,but estimates suggest thefigure is over 450 million.The number of disabled people in India alone is

probably more thandouble the total population of Canada.

In the United Kingdom,aboutone in ten people have some disability. Disability is not just something thathappens to other people.As we get older,many of us will become

less mobile,hard ofhearing or have failing eyesight.

Disablement can takemany forms and happen at any time of life.Some people are born withdisabilities.Many others become disabled as they get older. There are many

progressivedisabling diseases.The longer time goes on,the worse they become.Some peopleare disabled in accidents. Many others may have disability in the form of a

mental illness.Allare affected by people's attitude towards them.

Disabled people facemany physical barriers.Next time you go shopping or to work or visitfriends,imagine what would you do if you could not get up steps,or on to buses

and trains?Whatwould you do if you could not see where you were going or could not hear thetraffic?But there are other barriers:prejudice（偏见）can be even harder to

break down andignorance represents by far the greatest barrier of all.It is almost impossiblefor the able-bodied to fully understand what the disabled go through,so it is

important to drawattention to these barriers and show that it is the individual person and theirability,not their disability,which counts.It can beconcluded from the passage that______.

A.we should try ourbest to prevent disablement

B.we must take aproper attitude towards the disabled

C.the able-bodiedpeople will never fully understand the disabled

D.both physical andmental barriers are hard to break down