Answer;
The event in Act IV that foreshadows Macbeth's eventual down fall is that;
Macduff discovers Macbeth has murdered his family and vows to kill Macbeth himself. <span>This is used to foreshadow an imminent conflict between Macbeth and Macduff.</span>
Explanation;
Foreshadowing is the use of indicative word or phrases and hints that set the stage for a story to unfold and give the reader a hint of something that will happen without revealing the story, or interfering with suspense.
The claim is usually defined as your belief, like what you think it is. Example: I believe that all spiders are bad, but on the other hand... something like this i think. I hope this helps you.
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.