一道逻辑题求解答~~谢谢:-)

Helloface

Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive.  Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600.  However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verdlanders receiving the special program information probably did not increase significantly.

Which of the following is an assumption on which the argument depends?

(A) Few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations.
(B) In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.
(C) Equipping a radio station with RDS technology does not decrease the station's listening area.
(D) In 1996 Verdlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994.
(E) The RDS radio stations in Verdland in 1996 did not all offer the same type of programming.、

答案是A，不过我没看懂A的意思~~~- -|||

Helloface

呜呜呜呜，我好笨，还是木有懂~~~T.T

要收听RDS电台必须有RDS装备，在某地区，1994到1996年间RDS电台增加了很多，但是装有RDS装备的人数没增加，那么收听RDS电台的数量也就不会有什么增加。

A怎么解释成这个结论的假设呢？？

Helloface

哦哦哦哦原来这样~~~~谢谢LS，我懂了o(∩_∩)o...