Explanation:

- *To make someone angry*: This means doing something intentionally to provoke or irritate someone.

- *To protect someone*: This involves keeping someone safe from harm or danger.

- *To wish someone luck*: The act of expressing good wishes to someone, typically before an event.

- To tease someone: This idiom means to joke or playfully make fun of someone, often to amuse others or oneself. This is the correct interpretation of the idiom "pull someone's leg."

The answer is Option 4: To tease someone.

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