题目内容：
Questionsare based on the following passage．In London, over half of the homes built between 1919 and 1980 had one garage．But many arebecoming needless．Between 2002 and 2012 the proportion of vehicles kept in garages at night droppedfrom 22% to 14%．This is in part because some households now have more cars than garage space．Butit is also because big modern cars do not fit in older garages, says David Leibling, a transport expert．
Few rust when left outside, and many are more difficult to steal: between 2003 and 2013 the number ofvehicle being stolen in England and Wales fell 76%．Instead, garages now solve a different set ofproblems．
Householders unable to move to larger homes have taken to filling their garages with unnecessaryand unwanted things．Some garages have been converted for aging parents for their convenience, says Paul Bishop, who runs a garage conversion company in Bedfordshire．Also, some young people unableor unwilling to leave home may have an option to live in the garage．In addition, a garage may be rentedto young folks fond of music．It is, more often than not, an ideal place to freely play music．
However, many publicly owned garages lie empty．Of the 6,000 garages owned by Hackney
council, around 40% are free．Over 3,000 garages owned by ten housing associations are unused and the land they take up is unfit for building homes upon, says Steve O'Connell, a councilor at the London Assembly．He thinks they could be turned into small offices．That has already happened in places such as Berlin．
Nevertheless converting garages can be troublesome, says Bill Hodgson of University College London．Few councils are enthusiastic enough to truly support the idea and put it into practice．A recent proposal to turn some garages in north London into shelters for the homeless has been rejected; councillors feared that local residents would not approve．Getting planning permission can be complex,
and developing on local authority land is often faced with various kinds of problems．Like the garages themselves, these plans may be useless and abandoned．
In the viewpoint of David Leibling, many garages are unused for velficles in that__________． A．the number of vehicles in the garages being stolen decreases by 76%
B．big modern vehicles are covered with rust when placed in the garages
C．big modem vehicles do not suit older garages
D．some families have more garages than vehicles
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