最近在总结考点，突然想不透句尾Ving考点，所以上来请示各位大神们。
句尾Ving表达因果关系、表示伴随发生的事情。
今天做到一题正要选Ving时却卡住，因为我去检查了逻辑主语，
发现主要子句的主词不能做出Ving这个动作而是受词要做，所以选到了错误答案。
贴一下今天做的题目：
To map Earth’s interior, geologists use a network of seismometers to chart
seismic waves that originate in the earth’s crust and ricochet around its
interior, most rapidly traveling through cold, dense regions and slower
through hotter rocks.
A) interior, most rapidly traveling through cold, dense regions and slower
B) interior, which travel most rapidly through cold, dense regions, and more slowly
C) interior, traveling most rapidly through cold, dense regions and more slowly
D) interior and most rapidly travel through cold, dense regions, and slower
E) interior and that travel most rapidly through cold, dense regions and slower
分享我的做题思路，各路神人烦请不吝指教：
1) most rapidly和more slowerly平行，删ADE
2) 原本要写C，可是回头去看traveling逻辑主语抓到geologists，心理一阵困惑。
做traveling这个动作的不是seismic waves吗!!! 于是写了B
3) B跳跃修饰指代seismic waves
(后来查论坛that/which同时指代seismic waves是错误的)
谢谢大家，祝各位杀G顺利。