Option 1 -> She considers having a guest in wintertime "an unheard-of piece of luck" and wants to prove herself "worthy of her good fortune."
Option 2 -> The passage shows enthusiasm and excitement, not stress or inability to cope with the situation.
Option 3 -> She is clearly happy and grateful for the guest, not dejected or in low spirits.
Option 4 -> There is no indication of anxiety or fear; rather, she is eager and pleased to serve him.
Hence, Option 1: overjoyed -> Mrs. Hall is delighted because guests rarely visit Iping during winter, and this particular guest paid readily ("no haggler") with two sovereigns. She personally prepares his meal to demonstrate her gratitude and make the most of this unexpected good fortune -> correct