填空 Although Wild Aid has been trying to stop the slaughter of sharks for their fins, current regulations rarely curtail ---- to the degree needed to restore shark populations.
　 (A) sharks are hunted (C) the hunting of sharks
　 (B) to hunt shark (D) sharks
为什么答案是c不是b

（2）The reason automobiles travel on left side in Japan has little to do with Britain and a lot to do with the way ancient soldiers used to carry their swords.
问题the way 后面是不是定语，还是什么？on left 是不是应为on the left?
这句话怎么翻译？