As fuel prices rose,bus companies raised their fares and ___.
问题描述：
As fuel prices rose,bus companies raised their fares and ___.
A、so did the airlines
B、nor did the airlines
C、 so the airlines did
D、 nor the airlines did
为什么选C?并翻译整句
答
我也认为选A.
译文：随着燃料价格的提高,汽车公司提高了票价,且航空公司也是.
so+动词+主语：表示“谁也是”.