I'm confused about this dialog I extract from my exam.
A:Honey,let's eat out tonight. What do you think?
B:_____________ I don't feel like cooking anyway.
2.You can say it again
4.Can I take a rain check?
5.You must be kidding me.
I'm wondering I should answer 2 or 3. I can't tell apart their meanings anymore. Could you explain that for me?