How is bilbos luck used as a plot device? (The Hobbit)

Bilbo's luck should be seen as a plot device that reinforces the theme of Bilbo's growing self-awareness and self-confidence. Bilbo( Baggins) was so scared, while trying to say "more time" he ended up saying "time" and that luckily was the answer.

It becomes the factor of the plot because they always escape from things that capture them and how they get saved by Bilbo and his ring.

hope this helps!

answer: d.she abandons people when they least expect it.

in the monk's tale, we encounter seventeen stories that relate historical events. all of these stories have tragic commonalities. they tell the stories of heroes who, despite their success in life, all met sad ends. the monk blames these sad outcomes on fortune. one of fortune's traits is that she abandons people when they least expect it. this is one of the most common themes of medieval tragedies.