Macbeth knows that Birnam Wood is approaching and his end is near
I manage my screen time by creating new habits and distracting myself from using my cellphone so much. I try working on homework or listening to music, going on runs to the park and helping my mom tiding up the house. Since online classes started my screen time has gone down, I believe it’s because I’ve been paying attention in class and focusing on my school work rather than my phone and social media.
While I have never read the book (because it is historically inaccurate - so don't get too sad, because it never could have happened), there are many words that would signal a flashback. Flashbacks are a time of reflection, so there are many past tense verbs used. You may also see things like, "Back in my day...", "As I think back...", "When I was a young boy...", "As I remember...".
From research, I believe the answer is C. I hope this helps!