Answer:
Life is Life and thats that.
The answer is D!
A and B are too similar for it to be either of those.
C is effected because they install the windows so that they can be protected from the weather.
Maybe that's true, but it is life you know!
you gotta have some trouble once in a while, if everything was alright and your life was perfect then you are living a lie, we have to struggle, to figure out our path, to live...
because if you didn't taste sadness or pain, you wouldn't know what happiness really means!
life has its ups and downs, you just have to enjoy it.