一道阅读理解问题Radio and Television Radio and television are very p

一道阅读理解问题
Radio and Television
Radio and television are very popular in the world today.Many people watch television.We call them viewers.perhaps more people listen to the radio.wi call them listeners.Older people call the radio the wireless.And in conversation people call television TV or the ‘tele’.
The TV is,of course,more useful than the radio.On the TV you can see and hear what is happening.But the radio is not disappearing (消失).It is still with us.And the number of listeners is becoming larger.One reason (原因) for this is the invention (发明) of the transistor set (半导体收音机).A transistor set is sometimes very small.It is easy to carry about.You can put one in your pocket (衣袋) when you go to work.You can listen to news broadcasts (广播) or radio lessons on the bus.You can listen to them on your bike.You can put your own transistor set beside your pillow (枕头) when you go to bed.Besides (除此以外),radio broadcasts are better for blind people.And the sight of many old people is not good enough to watch television.Then when people are working,they cannot watch television,but they can always listen to music on the radio.What’s more (而且),a television set is rather expensive.Not every family can have one.But a transistor set is much cheaper.
Radio broadcasts are better for＿＿ .
A．blind people B．children C．some old people D．both A and C
选什么?Why?从文中找出相关语句回答

D文中提到 (除此以外),radio broadcasts are better for blind people.And the sight of many old people is not good enough to watch television