Answer:
My sister is thinner than me.
Explanation:
You should know that "My sister is thinner than I" is actually the more grammatically correct version. Yes, really.
I can take you out for lunch today or do you want me in a few hours to pick you out and then you will be there for me please help you pick me out please please help me out with my new job please help you out with the new job I am not going out with the help you need help with this please
The third one is the correct answer