Work is the verb in this sentence
Answer:
This story shows us that humans are messed up and broken, but even in the most broken of states, our humanity can shine through. The narrator is broken down and in a bad place, but still feels remorse about the state he's left his kids in. This person celebrates that one of their daughters is doing alright, but they don't want to mess things up for her by moving in with her. Their humanity and love for their children is shown in this, even though they're all messed up.
"Like sparks from a blacksmith's window" refers to the sparks that happen when a blacksmith is working. The meaning depends on the context. The context should usually be something like anger, exploding anger, or it could be excitement...
B. Solar power saves money for the user and makes the world a better place all around.
A is a personal opinion, C is not specific at al, D is factual, but it doesn't exactly make sense because though it helps the environment it doesn't really sustain our resources. Therefore B is the correct answer.