He was convinced that (if property taxes would have rose) any higher, he would have had to move to a different area.括号部分为划线，答案说替换成C，为什么D不对呢？
B if property taxes would riseC if taxes had risenD had property taxes roseE were property taxes to rise：
您好!感谢您对培训的关注!您的问题回答如下：美国教育联盟金牌留学专家孙立洋老师介绍，在一个句子的从句中，虚拟语气如果有多句话，中间需要有连词的引导；而且C的表达比D正式些。
