I'm, either, not going offend you, as same as you wouldn't be going to do so by saying "I think you are confusing".
Before giving you my translation, may I ask you to give me your one? Or, do you mean you don't get the meaning of #4, but you think #4 is correct? This is the learning Japanese section. It's far easy just to tell you the correct translation, but we always want to help members to understand the language, by themselves.
Actually, the answers #1~3 are all wrong and only #4 is correct. That's why #4 is the correct answer of the question "which is the correct one?"