"It always seems impossible until it's done."
What does this quote mean to you?

it means that that before u do anything it looks difficult and you dont wanna do it but later after you do that it isn't that hard.eg.Before u study about the grammar topic ,u think it would be hard and impossible to learn but later when u get the idea u will really know how it is.

it can be many reasons such as they could want they're family to live and explore more two. might just want to be nice.

3.some say for the greater good or future.

4. they might want to have they're baby,kid,family explore more. people just sacrifice.

true fact:

someone is sacrificed everyday.

the second option.is correct