What does the phrase "don't let yourself be taken in" suggest about Sarah's behaviour?

The phrase "don't let yourself be taken in" generally means to not be easily deceived or influenced by someone or something. In the context of Sarah's behavior, this suggests that there is a contrast between her external demeanor and her internal motivations or actions.

Choosing the option that she appears carefree but is hardworking aligns with the idea that while Sarah might come off as someone who doesn't take things seriously or is laid-back, there is an underlying commitment or diligence in her actions. The phrasing indicates that although she has a relaxed appearance, she might be exerting effort behind the scenes, reinforcing the notion that she shouldn't be underestimated.

This interpretation emphasizes a duality in her character, suggesting that outward appearances can be misleading. In contrast, other options may suggest a singular trait or a more straightforward interpretation of her behavior, which does not capture this complexity as effectively.