b. It creates tension in that all events are seen against coming failure and grief.
Explanation:
Nowadays, science has become powerful in the world. That's why It can be a bit shocking the possible idea of <em>"human's inability to stop nature" </em>shown in a story by a narrator. However, the main benefit of letting the narrator describe a human's inability to stop nature is that It creates tension in that all events are seen against coming failure and grief.
The last one. The only scenario where you wouldn't put a comma in the first quote is if it's a completed remark that uses particular punctuation such as a quotation or exclamation mark, but never a period. Hope this helped.
