The correct answer is " A. He was wondering whether Mrs. Sappleton was in the married or widowed state" This is the correct answer because it would be obvious if one was married or a widow. So to not be sure whether she was widowed or not is suspicious.
Since we are in a rush, I'll just skip a paragraph on how to find what you're looking for!
Foreshadowing, be it a warning or indication of a future event.
Let's look at your choices.
A: <span>He was wondering whether Mrs. Sappleton was in the married or widowed state. -This choice has no "warning," signals or anything with any "stressful," notes that would mean foreshadowing. It was a neutral curiosity.
B: Somehow in this restful country spot tragedies seemed out of place. -This choice, shows that eerie vibe, for example it has that, "things couldn't get any worse," and then it could actually get worse. It's as if, if you may, that the character thinks that whatever happened is long gone and will never return.
C: Framton wondered whether Mrs. Sappleton came into the nice division. -To my knowlegde, I see no signs of a warning or stress in this text. Just neutral curiosity.
D: But has that window got anything to do with the tragedy? -This, has the warning and stress vibe all OVER it. But, if you go over it, and maybe read back in the story, this question could also come AFTER the event that was actually being foreshadowed.
Therefore; to my knowledge and understanding, Your answer is B.
I apologize for taking so long! I hope this helps! Have a good day!