Explanation:

- The sentence is trying to convey what someone did regarding the magician's trick.

- Bewildered: This means to be confused or puzzled. For instance, "She was bewildered by the complex trick." However, "bewildered" doesn't fit grammatically as an action in this context.

- Wondered: This means to be curious or to think about something. The sentence "She wondered how the magician had performed the rope trick" correctly captures the curiosity.

- Suspected: This implies having a suspicion about something without proof. This is less about being puzzled or curious and more about a sense of doubt or distrust.

- Puzzled: Similar to "bewildered," it means to be confused. It suggests a state rather than an action.

Correct Answer: Option 2 - wondered