[求助]885/E-23有疑问

23.   A new phenomena, which is visible at Managua’s major intersections, are waves of vendors and beggars, which include many children and mob cars at the stoplights.

(A) A new phenomena, which is visible at Managua’s major intersections, are waves of vendors and beggars, which include many children and

(B) Visible at Managua’s major intersections are waves of vendors and beggars with many children, new phenomena that

(C) A new phenomenon visible at Managua’s major intersections is waves of vendors and beggars, many of them children, who

(D) Phenomenally new waves of vendors, beggars, and many children are visible at Managua’s major intersections, which（C）

(E) A wave of vendors and beggars, many of whom are children, are visible at Managua’s major intersections, where they are a new phenomenon and

我有一个疑问就是 a new phenomenon is waves,这样可以吗？gmat语法中不是单数对单数的吗？还有就是B中的 new phenomenon that mob cars逻辑上也还是可以的，新的现象可以拖住cars。B除了这个逻辑错误还有什么不妥吗？要考了，请教了

a new phenomenon is waves

这样的句子大多数情况是不对的。

但是，请千万不要忘记，只有逻辑意思没有问题。这样的句子就没问题。