Select the most appropriate meaning of the given idiom.

Pull someone’s legs

To tease someone

The most appropriate meaning of the idiom "pull someone's legs" is to tease someone.

The other options are incorrect.

• "To protect someone" does not mean to tease someone. Protecting someone means to keep them safe, while teasing someone means to make fun of them in a playful way.
• "To wish someone luck" does not mean to tease someone. Wishing someone luck means to hope that they will be successful, while teasing someone means to make fun of them in a playful way.
• "To make someone angry" does not mean to tease someone. Making someone angry means to make them upset, while teasing someone means to make fun of them in a playful way.

The idiom "pull someone's legs" comes from the idea of pulling someone's leg, which is a playful way of making fun of them. For example, you might say that your friend is pulling your leg if they tell you that they are going to win the lottery.