As someone who writes books, I'd normally use quotation marks, and the person is obviously talking, so the first one should be correct.
Answer: Options B and C
Explanation:
The Great Depression was one of the worst economic catastrophes in American history and a major disaster of the modern era. It was harrowing to experience. People were starving, even in the land of plenty. It triggered political upheavals in Europe that had devastating consequences. And it was so persistent that it only yielded to another global tragedy: the Second World War.
Answer:
LOC. Michael closed his office door to take the call from Chandra.
Explanation:
This sentence shows Micheal didn’t want anyone else overhearing their conversation so he was being DISCREET.