Answer:
That Jenny uses body language reading to detect when someone is lying.
Explanation:
Body languages involves every movement that the person does, even the slightest move or tick counts as it. Most people have a singular characteristic movement when they tell a lie.
Some blink, other touch some part of their body constantly like the hands), some others look to a certain point, etc.
Jenny is most likely to use this as a method for detecting other´s peoples lies, which is very effective once you know look very close to the person and its signs.
Your answer is A.
This is why:
At the end of this short novel, the audience learns that the Necklace was fake! If Mathilde would have come clean with the fact that she lost it, she wouldn't have had to do all that work and make herself old.
B for sure. style is different for each author and influences potentially anything in the text. Think about shakespeare, he would obviously write differently to someone writing about teenage vampire romance.