[求助]885 SecE-23

[求助]885 SecE-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
(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

Correct answer: C
I know the mistakes in the other choices. but why C is right since " A new phenomenon visible...is waves of.....

Why "is" plus plural "waves".

Thank you!

以A为例：

1－A new phenomena，单个名词；

2－which is visible at Managua's major intersections，定从修饰前置名词phenomena；

3－are waves of vendors and beggars，主句谓宾部分；

4－which include many clildren and mob cars at the stoplights，定从（原文意图）修饰前置名词vendors and beggars；

A的错误在2部分（定从n, + which be + a.一般情况下可以被a. + n.替代【注：除了逻辑或平行结构需要】）；3部分主谓一致；4部分which定从的指代不明确，不如C中用同位语+明确定从who好。

STONEREN:  "4－which include many clildren and mob cars at the stoplights，定从（原文意图）修饰前置名词vendors and beggars；A的错误在2部分（定从n, + which be + a.一般情况下可以被a. + n.替代【注：除了逻辑或平行结构需要】）；3部分主谓一致；4部分which定从的指代不明确，不如C中用同位语+明确定从who好。"

Thank Stoneren for your explanation. But I still do not understand the last part of C. When I put it in the sentence.I am confused by " many of them children,who"   how to connect  [ mob cars at the stoplights.  In meantime, what's the meaning about " many of them children",bty, could u please tell me the relationship between them and children?  Thank you very much

我认为 "many of them children" 是同位语, 可理解为 "many of them (are) children".  "Them" 指代"vendors and beggars", 后面的 who 也指代 "vendors and beggars".

who 修饰的是beggars, 不是vendors

vendor是自动售卖机，就是路边那个大箱子，都见过吧。

还有，关于wave作为名词的解释是

n 1: one of a series of ridges that moves across the surface of a liquid (especially across a large body of water) [syn: moving ridge]

2: a movement like that of an ocean wave; "a wave of settlers"; "troops advancing in waves"

3: (physics) a movement up and down or back and forth [syn: undulation]

4: something that rises rapidly; "a wave of emotion swept over him"; "there was a sudden wave of buying before the market closed"; "a wave of conservatism in the country led by the hard right" ---这句中，显然是这个意思。

5: the act of signaling by a movement of the hand [syn: waving, wafture]

6: a hairdo that creates undulations in the hair

7: an undulating curve [syn: undulation]

8: a persistent and widespread unusual weather condition (especially of unusual temperatures)

9: a member of the women's reserve of the United States Navy; originally organized during World War II but now no longer a separate branch [syn: Wave]