Which is the best life and why?

1. Childhood

2. Married

3. Unmarried

Explain not mandatory here, just show your positive response.
For me, I'll go with childhood. Reason being that, it's the only time you really have no worries! Especially when you have parents or guidance to watch over you and they are able enough to provide your basic needs. Its all we really want in life, not getting to worry and somehow, every child has that on a gold platter.
Yes, childhood will be the best life, but we can not be like that. We were getting old, and we need to live our life every day and trying to do many things. Trust me, if you can enjoy your life, that is the best life for you. Try to do something that you like, and stick to that and do not complain if you do not get a better life because you will get that in the future. So that might be your best life in the future.