I would presume that the one that has to do with academic skills such as thinking. I think its researching. Hope it helps :)
Even though you didn't give us the fragment with the comma slice, it isn't really necessary here as we can answer just based on these 4 options here. All options apart from the second one are correct - only the second option doesn't fix the mistake of the comma splice, whereas the other options do but connecting the sentences properly.
Answer:
please wait there until i return
Explanation:
You need to give me the topic question. I can't answer this question without it.
Unclear question. However, I infer you want to know where the text is taken from.
Answer:
The Golden Kite, The Silver Wind
Explanation:
The text is gotten from the book "The Golden Kite, The Silver Wind" by Ray Bradbury.
This short story is recognised for its commentary about the Cold War often emphasizing role of nuclear weapon during the Cold War.