I believe it is D because the allies weren't formed yet before war broke out but when it did, that's when the allies were formed.
I would say definitely use your time wisely. Make sure you are fully focused too. Though it may be difficult to focus, (I understand) try and find some outside resources that can help you bring interest into what you're learning in any subject.
Answer:
I.a cookbook has been written by agricultural officers
II.the sky is being darkened by locust swarms of 50km
