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Hi
Please read the following text and answer the question that follows it

There is a great concern in Europe and North America about declining standards of literacy in schools. In Britain, the fact that 30 per cent of 16 year olds have a reading age of 14 or less has helped to prompt massive educational changes. The development of literacy has far-reaching effects on general intellectual development and thus anything which impedes the development of literacy is a serious matter for us all. So the hunt is on for the cause of the decline in literacy. The search so far has focused on socio¬economic factors, or the effectiveness of 'traditional' versus 'modern' teaching techniques.

The fruitless search for the cause of the increase in illiteracy is a tragic example of the saying 'They can't see the wood for the trees'. When teachers use picture books, they are simply continuing a long-established tradition that is accepted without question. And for the past two decades, illustrations in reading primers have become increasingly detailed and obtrusive, while language has become impoverished — sometimes to the point of extinctio

142)The saying mentioned by the author implies that...............
a.students use too many picture books in schools
b.more radical educational changes are required to increase literacy
c.reaserchers have dealt superficially with the problem
d.low level of literacy is getting more and more common

Thanks in advance!