GWD-21-30，the key is B,C OR D?

tanwt

GWD 21-30

In the past, most children who went sledding in the winter snow in Verland used wooden sleds with runners and steering bars. Ten years ago, smooth plastic sleds became popular; they go faster than wooden sleds but are harder to steer and slow. The concern that plastic sleds are more dangerous is clearly borne out by the fact that the number of children injured while sledding was much higher last winter than it was ten years ago.

Which of the following, if true in Verland, most seriously undermines the force of the evidence cited?

A.     A few children still use traditional wooden sleds.

B.     Very few children wear any kind of protective gear, such as helmets, while sledding.

C.     lastic sleds can be used in a much wider variety of snow conditions than wooden sleds can.

D.     Most sledding injuries occur when a sled collides with a tree, a rock, or another sled. (B)

Because the traditional wooden sled can carry more than one rider, an accident involving a wooden sled can result in several children being injured.

tanwt

i think D is best key,?

我想去美国

我之前也选了D，现在想想还是C好，理由如下：

D说很多受伤是由于与树、石头等相撞而产生的，但并没有因此说明受伤与塑料雪橇无关，也许就是因为塑料，所以增加与树相撞的几率

而C说的就不一样了，塑料雪橇的应用更加广泛，因此可能造成了更多的受伤。很合乎逻辑。

以上属于个人意见，谢谢~！