Explanation:

- The underlined word is "novice," which refers to someone who is new or inexperienced in a field. It describes someone who is just beginning to learn a craft or skill.

- Option 1: Mature - Generally means fully developed or adult. In this context, it's not directly opposite to "novice."

- Option 2: Expert - Refers to someone highly skilled and knowledgeable, the opposite of inexperienced or new.

- Option 3: Stylish - Means fashionable or elegant. It's unrelated to experience or skill level.

- Option 4: Apprentice - Refers to someone learning a trade, similar to a novice, usually not an antonym.

- Correct Answer: Option 2: Expert