102. As rainfall began to decrease in the Southwest themiddle of the twelfth century, most of the Monument Valley Anasazi abandonedtheir homes to join other clans whose access to water wasLess limited
(A) whose access to water was less limite
(B) where there was access to water thatwas less limited
(C) where they had less limited wateraccess
(D) with less limitations on water access
(E) having less limitations to water access
OA：A
看了这个题目所有的帖子，问的做多的问题就是C中为什么说they指代有歧义的问题了。
但是我的疑问在于B和C中的定从都是使用的where，where可以指代clans么？难道理解为这里的where =in which（which=clans）？
如果这个where没有错误的话，那么C中的指代歧义的问题就没有了啊。我们把这个where（in which）带入原句，就成了：in which（在这些clans），they（这时候根据句意这个they只能指代Anasazi，你不能说这些clans在clans中吧） had less limited water access，不就没有问题了吗 | 
