I waited for Jane for ages and ____i gave up

题目

I waited for Jane for ages and ____i gave up
1 in the result 2 as a reason 3 in the end 4 on the end 5 as a result

答案

3,最终
有疑惑的是5 为什么不行.as a result 是结果,有一个因果关系,但句子中等了很多年 和 放弃 没有因果关系,而只是转折吧.