Quiz: Which Japanese word is correct?

This is a conversation between a friend and me. My friend lost his wallet and was in a lot of trouble. He lost his wallet and he was in trouble because he didn't have the train fare to go back to his home. I walked around town with him looking for his wallet. However, the wallet was not found. So I lent him money to go home. What is the appropriate word to fit in (　　　) below?

友だち : あなたが　たすけてくれて　とてもうれしかった。

わたし : （　　　　　　）

1 : どういたしまして

2 : ごきげんよう

3 : ごめんなさい

Please feel free to answer in the comments section below.