The answer is B because it can be easily shortened down/ make more sense without the commas to: I heard in the weather report that it's going to rain.
Hello !
I think the answer would be...
The last option, "The Nation has to go through significant changes to avoid such tragic wars in the future."
I hope I was able to help you out ! :DD
A because it is the best answer there
Answer:
murder one and then hide the body