最近在總結考點，突然想不透句尾Ving考點，所以上來請示各位大神們。
句尾Ving表達因果關係、表示伴隨發生的事情。
今天做到一題正要選Ving時卻卡住，因為我去檢查了邏輯主語，
發現主要子句的主詞不能做出Ving這個動作而是受詞要做，所以選到了錯誤答案。
貼一下今天做的題目：
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
分享我的做題思路，各路神人煩請不吝指教：
1) most rapidly和more slowerly平行，刪ADE
2) 原本要寫C，可是回頭去看traveling邏輯主語抓到geologists，心理一陣困惑。
做traveling這個動作的不是seismic waves嗎!!! 於是寫了B
3) B跳躍修飾指代seismic waves
(後來查論壇that/which同時指代seismic waves是錯誤的)
謝謝大家，祝各位殺G順利。